<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019caf84-92cb-772e-8326-39c9c7ec371b,g:d695077c-d081-49cd-886c-5da2bc67d825-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member"/>
  <link:roleRef roleURI="http://viciproperties.com/role/CoverPage" xlink:type="simple" xlink:href="vici-20260331.xsd#CoverPage"/>
  <link:definitionLink xlink:role="http://viciproperties.com/role/CoverPage" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentInformationLineItems_019caf84-957d-79e4-a95a-6bf094928634" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentInformationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentInformationTable_019caf84-957d-73c0-bb2c-0ecff0598d85" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentInformationTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_dei_DocumentInformationLineItems_019caf84-957d-79e4-a95a-6bf094928634" xlink:to="loc_dei_DocumentInformationTable_019caf84-957d-73c0-bb2c-0ecff0598d85" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019caf84-957d-7766-8d37-49d3aa84fe3b" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_dei_DocumentInformationTable_019caf84-957d-73c0-bb2c-0ecff0598d85" xlink:to="loc_dei_LegalEntityAxis_019caf84-957d-7766-8d37-49d3aa84fe3b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019caf84-957d-7766-8d37-49d3aa84fe3b_default" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019caf84-957d-7766-8d37-49d3aa84fe3b" xlink:to="loc_dei_EntityDomain_019caf84-957d-7766-8d37-49d3aa84fe3b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019caf84-957d-7318-9785-aea638845a2c" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019caf84-957d-7766-8d37-49d3aa84fe3b" xlink:to="loc_dei_EntityDomain_019caf84-957d-7318-9785-aea638845a2c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_VICIPropertiesLPMember_019caf84-957d-78fa-b488-79d451b274e3" xlink:href="vici-20260331.xsd#vici_VICIPropertiesLPMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019caf84-957d-7318-9785-aea638845a2c" xlink:to="loc_vici_VICIPropertiesLPMember_019caf84-957d-78fa-b488-79d451b274e3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_019caf84-957d-720f-8b7e-0153795aceb4" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentType"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019caf84-957d-79e4-a95a-6bf094928634" xlink:to="loc_dei_DocumentType_019caf84-957d-720f-8b7e-0153795aceb4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentQuarterlyReport_019caf84-957d-7327-ba0b-b41fd5492847" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentQuarterlyReport"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019caf84-957d-79e4-a95a-6bf094928634" xlink:to="loc_dei_DocumentQuarterlyReport_019caf84-957d-7327-ba0b-b41fd5492847" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_019caf84-957d-7ee3-8ea5-e93f12056e3b" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentPeriodEndDate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019caf84-957d-79e4-a95a-6bf094928634" xlink:to="loc_dei_DocumentPeriodEndDate_019caf84-957d-7ee3-8ea5-e93f12056e3b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentTransitionReport_019caf84-957d-7743-8281-2bd613b4259f" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentTransitionReport"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019caf84-957d-79e4-a95a-6bf094928634" xlink:to="loc_dei_DocumentTransitionReport_019caf84-957d-7743-8281-2bd613b4259f" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_019caf84-957d-73e6-af01-f1721b5dbbcf" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityFileNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019caf84-957d-79e4-a95a-6bf094928634" xlink:to="loc_dei_EntityFileNumber_019caf84-957d-73e6-af01-f1721b5dbbcf" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_019caf84-957d-7f1e-a6eb-e2c12a8570bf" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityRegistrantName"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019caf84-957d-79e4-a95a-6bf094928634" xlink:to="loc_dei_EntityRegistrantName_019caf84-957d-7f1e-a6eb-e2c12a8570bf" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_019caf84-957d-76f1-b8b4-ff40dc28c7c6" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019caf84-957d-79e4-a95a-6bf094928634" xlink:to="loc_dei_EntityIncorporationStateCountryCode_019caf84-957d-76f1-b8b4-ff40dc28c7c6" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_019caf84-957d-75aa-b940-2abe6be5c420" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019caf84-957d-79e4-a95a-6bf094928634" xlink:to="loc_dei_EntityTaxIdentificationNumber_019caf84-957d-75aa-b940-2abe6be5c420" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_019caf84-957d-7ff7-8ebe-a3fca8ede9a6" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressAddressLine1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019caf84-957d-79e4-a95a-6bf094928634" xlink:to="loc_dei_EntityAddressAddressLine1_019caf84-957d-7ff7-8ebe-a3fca8ede9a6" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_019caf84-957d-7b43-9bc1-bbf0d477c6b4" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressCityOrTown"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019caf84-957d-79e4-a95a-6bf094928634" xlink:to="loc_dei_EntityAddressCityOrTown_019caf84-957d-7b43-9bc1-bbf0d477c6b4" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_019caf84-957d-7611-a0a7-a8dba7ad44ff" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressStateOrProvince"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019caf84-957d-79e4-a95a-6bf094928634" xlink:to="loc_dei_EntityAddressStateOrProvince_019caf84-957d-7611-a0a7-a8dba7ad44ff" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_019caf84-957d-7ad1-bbf6-4b90009cc32b" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressPostalZipCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019caf84-957d-79e4-a95a-6bf094928634" xlink:to="loc_dei_EntityAddressPostalZipCode_019caf84-957d-7ad1-bbf6-4b90009cc32b" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_019caf84-957d-74e7-b45f-7c0c6209be00" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_CityAreaCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019caf84-957d-79e4-a95a-6bf094928634" xlink:to="loc_dei_CityAreaCode_019caf84-957d-74e7-b45f-7c0c6209be00" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_019caf84-957d-73eb-bfa3-11fa30c720fa" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_LocalPhoneNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019caf84-957d-79e4-a95a-6bf094928634" xlink:to="loc_dei_LocalPhoneNumber_019caf84-957d-73eb-bfa3-11fa30c720fa" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_019caf84-957d-71a0-85bd-665a6fc6b9cb" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_Security12bTitle"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019caf84-957d-79e4-a95a-6bf094928634" xlink:to="loc_dei_Security12bTitle_019caf84-957d-71a0-85bd-665a6fc6b9cb" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_019caf84-957d-71f9-9126-0ae804d5bf7d" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_TradingSymbol"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019caf84-957d-79e4-a95a-6bf094928634" xlink:to="loc_dei_TradingSymbol_019caf84-957d-71f9-9126-0ae804d5bf7d" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_019caf84-957d-7b84-b8df-92f80f0b4012" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_SecurityExchangeName"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019caf84-957d-79e4-a95a-6bf094928634" xlink:to="loc_dei_SecurityExchangeName_019caf84-957d-7b84-b8df-92f80f0b4012" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCurrentReportingStatus_019caf84-957d-744c-b7c4-9584a7a58025" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityCurrentReportingStatus"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019caf84-957d-79e4-a95a-6bf094928634" xlink:to="loc_dei_EntityCurrentReportingStatus_019caf84-957d-744c-b7c4-9584a7a58025" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityInteractiveDataCurrent_019caf84-957d-76ff-93b2-ccaf700fa0ea" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityInteractiveDataCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019caf84-957d-79e4-a95a-6bf094928634" xlink:to="loc_dei_EntityInteractiveDataCurrent_019caf84-957d-76ff-93b2-ccaf700fa0ea" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFilerCategory_019caf84-957d-72dd-941e-7d69698be6a8" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityFilerCategory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019caf84-957d-79e4-a95a-6bf094928634" xlink:to="loc_dei_EntityFilerCategory_019caf84-957d-72dd-941e-7d69698be6a8" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntitySmallBusiness_019caf84-957d-782b-9b8d-2f14c3791139" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntitySmallBusiness"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019caf84-957d-79e4-a95a-6bf094928634" xlink:to="loc_dei_EntitySmallBusiness_019caf84-957d-782b-9b8d-2f14c3791139" xlink:type="arc" order="20"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_019caf84-957d-79a5-860a-5746630ee34b" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019caf84-957d-79e4-a95a-6bf094928634" xlink:to="loc_dei_EntityEmergingGrowthCompany_019caf84-957d-79a5-860a-5746630ee34b" xlink:type="arc" order="21"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityShellCompany_019caf84-957d-773f-8589-afbf41c6974e" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityShellCompany"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019caf84-957d-79e4-a95a-6bf094928634" xlink:to="loc_dei_EntityShellCompany_019caf84-957d-773f-8589-afbf41c6974e" xlink:type="arc" order="22"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCommonStockSharesOutstanding_019caf84-957d-7f35-bb42-b27f1657e18c" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityCommonStockSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019caf84-957d-79e4-a95a-6bf094928634" xlink:to="loc_dei_EntityCommonStockSharesOutstanding_019caf84-957d-7f35-bb42-b27f1657e18c" xlink:type="arc" order="23"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_019caf84-957d-7acf-91c5-c85287c115b8" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AmendmentFlag"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019caf84-957d-79e4-a95a-6bf094928634" xlink:to="loc_dei_AmendmentFlag_019caf84-957d-7acf-91c5-c85287c115b8" xlink:type="arc" order="24"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFiscalPeriodFocus_019caf84-957d-7cc6-96c4-c429b0f2bf96" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentFiscalPeriodFocus"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019caf84-957d-79e4-a95a-6bf094928634" xlink:to="loc_dei_DocumentFiscalPeriodFocus_019caf84-957d-7cc6-96c4-c429b0f2bf96" xlink:type="arc" order="25"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFiscalYearFocus_019caf84-957d-7768-908e-e4c3beb6282f" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentFiscalYearFocus"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019caf84-957d-79e4-a95a-6bf094928634" xlink:to="loc_dei_DocumentFiscalYearFocus_019caf84-957d-7768-908e-e4c3beb6282f" xlink:type="arc" order="26"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_019caf84-957d-795d-9630-d0dba0ed25bd" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityCentralIndexKey"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019caf84-957d-79e4-a95a-6bf094928634" xlink:to="loc_dei_EntityCentralIndexKey_019caf84-957d-795d-9630-d0dba0ed25bd" xlink:type="arc" order="27"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CurrentFiscalYearEndDate_019caf84-957d-7a54-9c93-99d5c2667cac" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_CurrentFiscalYearEndDate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019caf84-957d-79e4-a95a-6bf094928634" xlink:to="loc_dei_CurrentFiscalYearEndDate_019caf84-957d-7a54-9c93-99d5c2667cac" xlink:type="arc" order="28"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://viciproperties.com/role/VICIPROPERTIESINCCONSOLIDATEDBALANCESHEETSUNAUDITED" xlink:type="simple" xlink:href="vici-20260331.xsd#VICIPROPERTIESINCCONSOLIDATEDBALANCESHEETSUNAUDITED"/>
  <link:definitionLink xlink:role="http://viciproperties.com/role/VICIPROPERTIESINCCONSOLIDATEDBALANCESHEETSUNAUDITED" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_019caf84-957d-7a17-8cf9-68b35421ef8b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_019caf84-957d-7ef6-b818-18a0056b2a04" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_019caf84-957d-7a17-8cf9-68b35421ef8b" xlink:to="loc_us-gaap_StatementTable_019caf84-957d-7ef6-b818-18a0056b2a04" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019caf84-957d-7efa-a86c-eb9f8fbfc092" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_019caf84-957d-7ef6-b818-18a0056b2a04" xlink:to="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019caf84-957d-7efa-a86c-eb9f8fbfc092" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivableTypeDomain_019caf84-957d-7efa-a86c-eb9f8fbfc092_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ReceivableTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019caf84-957d-7efa-a86c-eb9f8fbfc092" xlink:to="loc_us-gaap_ReceivableTypeDomain_019caf84-957d-7efa-a86c-eb9f8fbfc092_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivableTypeDomain_019caf84-957d-7539-bc6d-638254a86140" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ReceivableTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019caf84-957d-7efa-a86c-eb9f8fbfc092" xlink:to="loc_us-gaap_ReceivableTypeDomain_019caf84-957d-7539-bc6d-638254a86140" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceReceivablesMember_019caf84-957d-780f-92c9-5c5952be1edb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceReceivablesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReceivableTypeDomain_019caf84-957d-7539-bc6d-638254a86140" xlink:to="loc_us-gaap_FinanceReceivablesMember_019caf84-957d-780f-92c9-5c5952be1edb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LoansReceivableAndSecuritiesMember_019caf84-957d-759d-a1bb-a23b2734425b" xlink:href="vici-20260331.xsd#vici_LoansReceivableAndSecuritiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReceivableTypeDomain_019caf84-957d-7539-bc6d-638254a86140" xlink:to="loc_vici_LoansReceivableAndSecuritiesMember_019caf84-957d-759d-a1bb-a23b2734425b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsAbstract_019caf84-957d-7e71-aca1-5dd6bd1f881a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetsAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019caf84-957d-7a17-8cf9-68b35421ef8b" xlink:to="loc_us-gaap_AssetsAbstract_019caf84-957d-7e71-aca1-5dd6bd1f881a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RealEstateInvestmentPropertyNetAbstract_019caf84-957d-7b14-a714-04ae9a3784d9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RealEstateInvestmentPropertyNetAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019caf84-957d-7e71-aca1-5dd6bd1f881a" xlink:to="loc_us-gaap_RealEstateInvestmentPropertyNetAbstract_019caf84-957d-7b14-a714-04ae9a3784d9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetInvestmentInLeaseExcludingAccruedInterestAfterAllowanceForCreditLoss_019caf84-957d-7efe-a113-19c52772b45a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetInvestmentInLeaseExcludingAccruedInterestAfterAllowanceForCreditLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateInvestmentPropertyNetAbstract_019caf84-957d-7b14-a714-04ae9a3784d9" xlink:to="loc_us-gaap_NetInvestmentInLeaseExcludingAccruedInterestAfterAllowanceForCreditLoss_019caf84-957d-7efe-a113-19c52772b45a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss_019caf84-957d-708f-b6ed-a23bc5e5f113" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateInvestmentPropertyNetAbstract_019caf84-957d-7b14-a714-04ae9a3784d9" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss_019caf84-957d-708f-b6ed-a23bc5e5f113" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LandAvailableForDevelopment_019caf84-957d-77e3-9f51-6ba08fd40438" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LandAvailableForDevelopment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateInvestmentPropertyNetAbstract_019caf84-957d-7b14-a714-04ae9a3784d9" xlink:to="loc_us-gaap_LandAvailableForDevelopment_019caf84-957d-77e3-9f51-6ba08fd40438" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019caf84-957d-7138-8f60-f95f4b1b2aeb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019caf84-957d-7e71-aca1-5dd6bd1f881a" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019caf84-957d-7138-8f60-f95f4b1b2aeb" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermInvestments_019cd0bd-f4a7-7c4b-815e-43e16186d5e0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShortTermInvestments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019caf84-957d-7e71-aca1-5dd6bd1f881a" xlink:to="loc_us-gaap_ShortTermInvestments_019cd0bd-f4a7-7c4b-815e-43e16186d5e0" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssets_019caf84-957d-7ffb-9422-45d75e3a5b21" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019caf84-957d-7e71-aca1-5dd6bd1f881a" xlink:to="loc_us-gaap_OtherAssets_019caf84-957d-7ffb-9422-45d75e3a5b21" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_019caf84-957d-7151-8e0f-99d70eb6611d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Assets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019caf84-957d-7e71-aca1-5dd6bd1f881a" xlink:to="loc_us-gaap_Assets_019caf84-957d-7151-8e0f-99d70eb6611d" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAbstract_019caf84-957d-7f39-b975-a8ef1e9e5097" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilitiesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019caf84-957d-7a17-8cf9-68b35421ef8b" xlink:to="loc_us-gaap_LiabilitiesAbstract_019caf84-957d-7f39-b975-a8ef1e9e5097" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_019caf84-957d-70ad-90de-e470f7dd358a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAbstract_019caf84-957d-7f39-b975-a8ef1e9e5097" xlink:to="loc_us-gaap_LongTermDebt_019caf84-957d-70ad-90de-e470f7dd358a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrentAndNoncurrent_019caf84-957d-78f0-9868-f7466ba71f6e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccruedLiabilitiesCurrentAndNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAbstract_019caf84-957d-7f39-b975-a8ef1e9e5097" xlink:to="loc_us-gaap_AccruedLiabilitiesCurrentAndNoncurrent_019caf84-957d-78f0-9868-f7466ba71f6e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsPayableCurrentAndNoncurrent_019caf84-957d-7feb-89f8-5c50f9c9263c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DividendsPayableCurrentAndNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAbstract_019caf84-957d-7f39-b975-a8ef1e9e5097" xlink:to="loc_us-gaap_DividendsPayableCurrentAndNoncurrent_019caf84-957d-7feb-89f8-5c50f9c9263c" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilities_019caf84-957d-7074-b991-750f3c0d18af" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAbstract_019caf84-957d-7f39-b975-a8ef1e9e5097" xlink:to="loc_us-gaap_OtherLiabilities_019caf84-957d-7074-b991-750f3c0d18af" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_019caf84-957d-7d66-9c6b-d41104c515f9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Liabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAbstract_019caf84-957d-7f39-b975-a8ef1e9e5097" xlink:to="loc_us-gaap_Liabilities_019caf84-957d-7d66-9c6b-d41104c515f9" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingencies_019caf84-957d-7259-88a1-68b914bb308a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommitmentsAndContingencies"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019caf84-957d-7a17-8cf9-68b35421ef8b" xlink:to="loc_us-gaap_CommitmentsAndContingencies_019caf84-957d-7259-88a1-68b914bb308a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019caf84-957d-77f6-a481-1d85b54195b5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019caf84-957d-7a17-8cf9-68b35421ef8b" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019caf84-957d-77f6-a481-1d85b54195b5" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValue_019caf84-957d-7735-97bf-873860b7fba5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019caf84-957d-77f6-a481-1d85b54195b5" xlink:to="loc_us-gaap_CommonStockValue_019caf84-957d-7735-97bf-873860b7fba5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockValue_019caf84-957d-77fc-8ba1-ed7f8916b656" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019caf84-957d-77f6-a481-1d85b54195b5" xlink:to="loc_us-gaap_PreferredStockValue_019caf84-957d-77fc-8ba1-ed7f8916b656" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapital_019caf84-957d-7e9f-a524-82d13053ad05" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AdditionalPaidInCapital"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019caf84-957d-77f6-a481-1d85b54195b5" xlink:to="loc_us-gaap_AdditionalPaidInCapital_019caf84-957d-7e9f-a524-82d13053ad05" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_019caf84-957d-745d-9f0b-26f11de6f80a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019caf84-957d-77f6-a481-1d85b54195b5" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_019caf84-957d-745d-9f0b-26f11de6f80a" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_019caf84-957d-7346-a933-5eee3fa4255d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019caf84-957d-77f6-a481-1d85b54195b5" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_019caf84-957d-7346-a933-5eee3fa4255d" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019caf84-957d-7cc6-af6b-153035b6b2a8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019caf84-957d-77f6-a481-1d85b54195b5" xlink:to="loc_us-gaap_StockholdersEquity_019caf84-957d-7cc6-af6b-153035b6b2a8" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MinorityInterest_019caf84-957d-77f8-9383-b1dd21d96139" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MinorityInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019caf84-957d-77f6-a481-1d85b54195b5" xlink:to="loc_us-gaap_MinorityInterest_019caf84-957d-77f8-9383-b1dd21d96139" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019caf84-957d-7016-96b0-de2f68453b87" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019caf84-957d-77f6-a481-1d85b54195b5" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019caf84-957d-7016-96b0-de2f68453b87" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_019caf84-957d-7207-99f0-92f1c1f076e5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019caf84-957d-7a17-8cf9-68b35421ef8b" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquity_019caf84-957d-7207-99f0-92f1c1f076e5" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://viciproperties.com/role/VICIPROPERTIESINCCONSOLIDATEDBALANCESHEETSUNAUDITEDParenthetical" xlink:type="simple" xlink:href="vici-20260331.xsd#VICIPROPERTIESINCCONSOLIDATEDBALANCESHEETSUNAUDITEDParenthetical"/>
  <link:definitionLink xlink:role="http://viciproperties.com/role/VICIPROPERTIESINCCONSOLIDATEDBALANCESHEETSUNAUDITEDParenthetical" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_019caf84-957d-7751-a65b-f8d32bafce03" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_019caf84-957d-760f-a974-c2271e95c19c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_019caf84-957d-7751-a65b-f8d32bafce03" xlink:to="loc_us-gaap_StatementTable_019caf84-957d-760f-a974-c2271e95c19c" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019caf84-957d-7b0b-ae24-bcd4d27084b4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_019caf84-957d-760f-a974-c2271e95c19c" xlink:to="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019caf84-957d-7b0b-ae24-bcd4d27084b4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivableTypeDomain_019caf84-957d-7b0b-ae24-bcd4d27084b4_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ReceivableTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019caf84-957d-7b0b-ae24-bcd4d27084b4" xlink:to="loc_us-gaap_ReceivableTypeDomain_019caf84-957d-7b0b-ae24-bcd4d27084b4_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivableTypeDomain_019caf84-957d-73fc-933e-c8a02d685a56" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ReceivableTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019caf84-957d-7b0b-ae24-bcd4d27084b4" xlink:to="loc_us-gaap_ReceivableTypeDomain_019caf84-957d-73fc-933e-c8a02d685a56" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceReceivablesMember_019caf84-957d-7819-8791-166cfa7beec0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceReceivablesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReceivableTypeDomain_019caf84-957d-73fc-933e-c8a02d685a56" xlink:to="loc_us-gaap_FinanceReceivablesMember_019caf84-957d-7819-8791-166cfa7beec0" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LoansReceivableAndSecuritiesMember_019caf84-957d-767b-8cf2-e1b3028d8c4a" xlink:href="vici-20260331.xsd#vici_LoansReceivableAndSecuritiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReceivableTypeDomain_019caf84-957d-73fc-933e-c8a02d685a56" xlink:to="loc_vici_LoansReceivableAndSecuritiesMember_019caf84-957d-767b-8cf2-e1b3028d8c4a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare_019caf84-957d-7ba4-a97a-8ab318b94dbb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockParOrStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019caf84-957d-7751-a65b-f8d32bafce03" xlink:to="loc_us-gaap_CommonStockParOrStatedValuePerShare_019caf84-957d-7ba4-a97a-8ab318b94dbb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesAuthorized_019caf84-957d-727a-9390-7c8933239c18" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019caf84-957d-7751-a65b-f8d32bafce03" xlink:to="loc_us-gaap_CommonStockSharesAuthorized_019caf84-957d-727a-9390-7c8933239c18" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesIssued_019caf84-957d-7df7-bda7-05ea2106a71c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockSharesIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019caf84-957d-7751-a65b-f8d32bafce03" xlink:to="loc_us-gaap_CommonStockSharesIssued_019caf84-957d-7df7-bda7-05ea2106a71c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_019caf84-957d-72f2-8114-b6c9cfd26336" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019caf84-957d-7751-a65b-f8d32bafce03" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_019caf84-957d-72f2-8114-b6c9cfd26336" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockParOrStatedValuePerShare_019caf84-957d-7443-b5a9-2ef9af974901" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockParOrStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019caf84-957d-7751-a65b-f8d32bafce03" xlink:to="loc_us-gaap_PreferredStockParOrStatedValuePerShare_019caf84-957d-7443-b5a9-2ef9af974901" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesAuthorized_019caf84-957d-7bee-87a5-5472d25312e6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019caf84-957d-7751-a65b-f8d32bafce03" xlink:to="loc_us-gaap_PreferredStockSharesAuthorized_019caf84-957d-7bee-87a5-5472d25312e6" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesOutstanding_019caf84-957d-7817-9331-72ad00c449c9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019caf84-957d-7751-a65b-f8d32bafce03" xlink:to="loc_us-gaap_PreferredStockSharesOutstanding_019caf84-957d-7817-9331-72ad00c449c9" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetInvestmentInLeaseAllowanceForCreditLossExcludingAccruedInterest_019caf84-957d-7c59-a7c2-5eef0e330ed0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetInvestmentInLeaseAllowanceForCreditLossExcludingAccruedInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019caf84-957d-7751-a65b-f8d32bafce03" xlink:to="loc_us-gaap_NetInvestmentInLeaseAllowanceForCreditLossExcludingAccruedInterest_019caf84-957d-7c59-a7c2-5eef0e330ed0" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest_019caf84-957d-70fa-a06c-d756d4852ac7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019caf84-957d-7751-a65b-f8d32bafce03" xlink:to="loc_us-gaap_FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest_019caf84-957d-70fa-a06c-d756d4852ac7" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_OtherAssetsSalesTypeSubleasesExcludingAccruedInterestAllowanceForCreditLosses_019caf84-957d-7bdf-aa82-958ea907a70a" xlink:href="vici-20260331.xsd#vici_OtherAssetsSalesTypeSubleasesExcludingAccruedInterestAllowanceForCreditLosses"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019caf84-957d-7751-a65b-f8d32bafce03" xlink:to="loc_vici_OtherAssetsSalesTypeSubleasesExcludingAccruedInterestAllowanceForCreditLosses_019caf84-957d-7bdf-aa82-958ea907a70a" xlink:type="arc" order="9"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://viciproperties.com/role/VICIPROPERTIESINCCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITYUNAUDITED" xlink:type="simple" xlink:href="vici-20260331.xsd#VICIPROPERTIESINCCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITYUNAUDITED"/>
  <link:definitionLink xlink:role="http://viciproperties.com/role/VICIPROPERTIESINCCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITYUNAUDITED" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_019caf84-957d-7418-b7f0-21fdc7a259d4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_019caf84-957d-7e5f-a73c-65ef7042daaa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_019caf84-957d-7418-b7f0-21fdc7a259d4" xlink:to="loc_us-gaap_StatementTable_019caf84-957d-7e5f-a73c-65ef7042daaa" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_019caf84-957d-712f-9e5e-ea22500277ff" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_019caf84-957d-7e5f-a73c-65ef7042daaa" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_019caf84-957d-712f-9e5e-ea22500277ff" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019caf84-957d-712f-9e5e-ea22500277ff_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_019caf84-957d-712f-9e5e-ea22500277ff" xlink:to="loc_us-gaap_EquityComponentDomain_019caf84-957d-712f-9e5e-ea22500277ff_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019caf84-957d-7a6a-9681-495268217c10" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_019caf84-957d-712f-9e5e-ea22500277ff" xlink:to="loc_us-gaap_EquityComponentDomain_019caf84-957d-7a6a-9681-495268217c10" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ParentMember_019caf84-957d-7ab2-8402-db55e03e515f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ParentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019caf84-957d-7a6a-9681-495268217c10" xlink:to="loc_us-gaap_ParentMember_019caf84-957d-7ab2-8402-db55e03e515f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_019caf84-957d-76f9-b9f4-86575bca8011" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ParentMember_019caf84-957d-7ab2-8402-db55e03e515f" xlink:to="loc_us-gaap_CommonStockMember_019caf84-957d-76f9-b9f4-86575bca8011" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_019caf84-957d-7495-831e-3f82490086db" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AdditionalPaidInCapitalMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ParentMember_019caf84-957d-7ab2-8402-db55e03e515f" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_019caf84-957d-7495-831e-3f82490086db" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_019caf84-957d-7704-83df-41a00f3d3c9b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ParentMember_019caf84-957d-7ab2-8402-db55e03e515f" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_019caf84-957d-7704-83df-41a00f3d3c9b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsMember_019caf84-957d-74ff-ad15-232a3621b52a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RetainedEarningsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ParentMember_019caf84-957d-7ab2-8402-db55e03e515f" xlink:to="loc_us-gaap_RetainedEarningsMember_019caf84-957d-74ff-ad15-232a3621b52a" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoncontrollingInterestMember_019caf84-957d-756a-9ae5-93008a60e068" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NoncontrollingInterestMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019caf84-957d-7a6a-9681-495268217c10" xlink:to="loc_us-gaap_NoncontrollingInterestMember_019caf84-957d-756a-9ae5-93008a60e068" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019caf84-957d-777b-ad3e-99eeb469a04c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019caf84-957d-7418-b7f0-21fdc7a259d4" xlink:to="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019caf84-957d-777b-ad3e-99eeb469a04c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019caf84-957d-7d4c-86c9-90075afac166" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019caf84-957d-777b-ad3e-99eeb469a04c" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019caf84-957d-7d4c-86c9-90075afac166" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_019caf84-957d-7a79-9c04-2bde02d6addf" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProfitLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019caf84-957d-777b-ad3e-99eeb469a04c" xlink:to="loc_us-gaap_ProfitLoss_019caf84-957d-7a79-9c04-2bde02d6addf" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_StockholdersEquityReallocationOfEquity_019caf84-957d-7a59-b9fc-a8b6e9f930d7" xlink:href="vici-20260331.xsd#vici_StockholdersEquityReallocationOfEquity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019caf84-957d-777b-ad3e-99eeb469a04c" xlink:to="loc_vici_StockholdersEquityReallocationOfEquity_019caf84-957d-7a59-b9fc-a8b6e9f930d7" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsCommonStockCash_019caf84-957d-71ce-ab6c-c0a2c593f449" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DividendsCommonStockCash"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019caf84-957d-777b-ad3e-99eeb469a04c" xlink:to="loc_us-gaap_DividendsCommonStockCash_019caf84-957d-71ce-ab6c-c0a2c593f449" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_019caf84-957d-77c9-84e7-99c97d821e19" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019caf84-957d-777b-ad3e-99eeb469a04c" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_019caf84-957d-77c9-84e7-99c97d821e19" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax_019caf84-957d-7f8c-a911-72b73a620be3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019caf84-957d-777b-ad3e-99eeb469a04c" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax_019caf84-957d-7f8c-a911-72b73a620be3" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax_019caf84-957d-7fee-97b2-fe521f579fc5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019caf84-957d-777b-ad3e-99eeb469a04c" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax_019caf84-957d-7fee-97b2-fe521f579fc5" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_019caf84-957d-7e71-b840-5d9562070463" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019caf84-957d-777b-ad3e-99eeb469a04c" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_019caf84-957d-7e71-b840-5d9562070463" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019caf84-957d-702b-82b8-4893a5401a04" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://viciproperties.com/role/VICIPROPERTIESLPCONSOLIDATEDBALANCESHEETSUNAUDITED" xlink:type="simple" xlink:href="vici-20260331.xsd#VICIPROPERTIESLPCONSOLIDATEDBALANCESHEETSUNAUDITED"/>
  <link:definitionLink xlink:role="http://viciproperties.com/role/VICIPROPERTIESLPCONSOLIDATEDBALANCESHEETSUNAUDITED" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_019caf84-957d-7502-93cc-bd5286c1e530" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_019caf84-957d-7c6f-b6f5-a6c6e5b33706" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_019caf84-957d-7502-93cc-bd5286c1e530" xlink:to="loc_us-gaap_StatementTable_019caf84-957d-7c6f-b6f5-a6c6e5b33706" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019caf84-957d-77e4-89d1-9cab55c86d02" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_019caf84-957d-7c6f-b6f5-a6c6e5b33706" xlink:to="loc_dei_LegalEntityAxis_019caf84-957d-77e4-89d1-9cab55c86d02" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019caf84-957d-77e4-89d1-9cab55c86d02_default" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019caf84-957d-77e4-89d1-9cab55c86d02" xlink:to="loc_dei_EntityDomain_019caf84-957d-77e4-89d1-9cab55c86d02_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019caf84-957d-70e3-b248-c9f4c197cc93" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019caf84-957d-77e4-89d1-9cab55c86d02" xlink:to="loc_dei_EntityDomain_019caf84-957d-70e3-b248-c9f4c197cc93" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_VICIPropertiesLPMember_019caf84-957d-71f2-8955-df1fb3064d0c" xlink:href="vici-20260331.xsd#vici_VICIPropertiesLPMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019caf84-957d-70e3-b248-c9f4c197cc93" xlink:to="loc_vici_VICIPropertiesLPMember_019caf84-957d-71f2-8955-df1fb3064d0c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019caf84-957d-7c42-ae45-03783449bd56" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_019caf84-957d-7c6f-b6f5-a6c6e5b33706" xlink:to="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019caf84-957d-7c42-ae45-03783449bd56" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivableTypeDomain_019caf84-957d-7c42-ae45-03783449bd56_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ReceivableTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019caf84-957d-7c42-ae45-03783449bd56" xlink:to="loc_us-gaap_ReceivableTypeDomain_019caf84-957d-7c42-ae45-03783449bd56_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivableTypeDomain_019caf84-957d-7ce8-b11b-a8198a0e83d7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ReceivableTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019caf84-957d-7c42-ae45-03783449bd56" xlink:to="loc_us-gaap_ReceivableTypeDomain_019caf84-957d-7ce8-b11b-a8198a0e83d7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceReceivablesMember_019caf84-957d-71c0-b2f4-b131c217f16b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceReceivablesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReceivableTypeDomain_019caf84-957d-7ce8-b11b-a8198a0e83d7" xlink:to="loc_us-gaap_FinanceReceivablesMember_019caf84-957d-71c0-b2f4-b131c217f16b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LoansReceivableAndSecuritiesMember_019caf84-957d-7195-bcb8-5d3b11c682f4" xlink:href="vici-20260331.xsd#vici_LoansReceivableAndSecuritiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReceivableTypeDomain_019caf84-957d-7ce8-b11b-a8198a0e83d7" xlink:to="loc_vici_LoansReceivableAndSecuritiesMember_019caf84-957d-7195-bcb8-5d3b11c682f4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsAbstract_019caf84-957d-7085-84c7-9cb3a70dbd92" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetsAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019caf84-957d-7502-93cc-bd5286c1e530" xlink:to="loc_us-gaap_AssetsAbstract_019caf84-957d-7085-84c7-9cb3a70dbd92" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RealEstateInvestmentPropertyNetAbstract_019caf84-957d-7e55-a6fb-33c0ab0d2226" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RealEstateInvestmentPropertyNetAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019caf84-957d-7085-84c7-9cb3a70dbd92" xlink:to="loc_us-gaap_RealEstateInvestmentPropertyNetAbstract_019caf84-957d-7e55-a6fb-33c0ab0d2226" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetInvestmentInLeaseExcludingAccruedInterestAfterAllowanceForCreditLoss_019caf84-957d-73f7-afa3-225cce4a771d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetInvestmentInLeaseExcludingAccruedInterestAfterAllowanceForCreditLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateInvestmentPropertyNetAbstract_019caf84-957d-7e55-a6fb-33c0ab0d2226" xlink:to="loc_us-gaap_NetInvestmentInLeaseExcludingAccruedInterestAfterAllowanceForCreditLoss_019caf84-957d-73f7-afa3-225cce4a771d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss_019caf84-9631-7dfe-918b-6292915a7633" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateInvestmentPropertyNetAbstract_019caf84-957d-7e55-a6fb-33c0ab0d2226" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss_019caf84-9631-7dfe-918b-6292915a7633" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LandAvailableForDevelopment_019caf84-9631-747b-8440-f1f9b9ca8098" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LandAvailableForDevelopment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateInvestmentPropertyNetAbstract_019caf84-957d-7e55-a6fb-33c0ab0d2226" xlink:to="loc_us-gaap_LandAvailableForDevelopment_019caf84-9631-747b-8440-f1f9b9ca8098" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019caf84-9631-7a59-b9e5-43bc6329b011" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019caf84-957d-7085-84c7-9cb3a70dbd92" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019caf84-9631-7a59-b9e5-43bc6329b011" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermInvestments_019cd0ef-f61a-7656-bd39-105c0fbdce48" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShortTermInvestments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019caf84-957d-7085-84c7-9cb3a70dbd92" xlink:to="loc_us-gaap_ShortTermInvestments_019cd0ef-f61a-7656-bd39-105c0fbdce48" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssets_019caf84-9631-73a6-abf0-d381d4fc9815" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019caf84-957d-7085-84c7-9cb3a70dbd92" xlink:to="loc_us-gaap_OtherAssets_019caf84-9631-73a6-abf0-d381d4fc9815" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_019caf84-9631-7ed3-b8e6-4850aa73de7f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Assets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019caf84-957d-7085-84c7-9cb3a70dbd92" xlink:to="loc_us-gaap_Assets_019caf84-9631-7ed3-b8e6-4850aa73de7f" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAbstract_019caf84-9631-7101-a9e8-e0217ed124f5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilitiesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019caf84-957d-7502-93cc-bd5286c1e530" xlink:to="loc_us-gaap_LiabilitiesAbstract_019caf84-9631-7101-a9e8-e0217ed124f5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_019caf84-9631-7b25-9ded-7e285c4aa382" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAbstract_019caf84-9631-7101-a9e8-e0217ed124f5" xlink:to="loc_us-gaap_LongTermDebt_019caf84-9631-7b25-9ded-7e285c4aa382" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrentAndNoncurrent_019caf84-9631-70a8-8483-fac9c120af9b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccruedLiabilitiesCurrentAndNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAbstract_019caf84-9631-7101-a9e8-e0217ed124f5" xlink:to="loc_us-gaap_AccruedLiabilitiesCurrentAndNoncurrent_019caf84-9631-70a8-8483-fac9c120af9b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsPayableCurrentAndNoncurrent_019caf84-9631-796b-bca0-3b1858a4ce08" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DividendsPayableCurrentAndNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAbstract_019caf84-9631-7101-a9e8-e0217ed124f5" xlink:to="loc_us-gaap_DividendsPayableCurrentAndNoncurrent_019caf84-9631-796b-bca0-3b1858a4ce08" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilities_019caf84-9631-7e01-a9a2-94a6b5df769d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAbstract_019caf84-9631-7101-a9e8-e0217ed124f5" xlink:to="loc_us-gaap_OtherLiabilities_019caf84-9631-7e01-a9a2-94a6b5df769d" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_019caf84-9631-7ef3-8225-af0370283152" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Liabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAbstract_019caf84-9631-7101-a9e8-e0217ed124f5" xlink:to="loc_us-gaap_Liabilities_019caf84-9631-7ef3-8225-af0370283152" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingencies_019caf84-9631-72ca-b760-f7df480c5711" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommitmentsAndContingencies"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019caf84-957d-7502-93cc-bd5286c1e530" xlink:to="loc_us-gaap_CommitmentsAndContingencies_019caf84-9631-72ca-b760-f7df480c5711" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019caf84-9631-747e-8c9d-ab3bcb5cee8a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019caf84-957d-7502-93cc-bd5286c1e530" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019caf84-9631-747e-8c9d-ab3bcb5cee8a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LimitedPartnersCapitalAccount_019caf84-9631-7830-8de4-13cf8b2000be" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LimitedPartnersCapitalAccount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019caf84-9631-747e-8c9d-ab3bcb5cee8a" xlink:to="loc_us-gaap_LimitedPartnersCapitalAccount_019caf84-9631-7830-8de4-13cf8b2000be" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_019caf84-9631-7c89-ae13-c66b9f26cc4b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019caf84-9631-747e-8c9d-ab3bcb5cee8a" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_019caf84-9631-7c89-ae13-c66b9f26cc4b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PartnersCapital_019caf84-9631-73a3-ba55-5cef3a84e001" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PartnersCapital"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019caf84-9631-747e-8c9d-ab3bcb5cee8a" xlink:to="loc_us-gaap_PartnersCapital_019caf84-9631-73a3-ba55-5cef3a84e001" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PartnersCapitalAttributableToNoncontrollingInterest_019caf84-9631-7114-8330-43999a79bc22" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PartnersCapitalAttributableToNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019caf84-9631-747e-8c9d-ab3bcb5cee8a" xlink:to="loc_us-gaap_PartnersCapitalAttributableToNoncontrollingInterest_019caf84-9631-7114-8330-43999a79bc22" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest_019caf84-9631-7f9e-ae74-2cd9564f7ccd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019caf84-9631-747e-8c9d-ab3bcb5cee8a" xlink:to="loc_us-gaap_PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest_019caf84-9631-7f9e-ae74-2cd9564f7ccd" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_019caf84-9631-724d-b06d-311a36ecc849" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019caf84-957d-7502-93cc-bd5286c1e530" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquity_019caf84-9631-724d-b06d-311a36ecc849" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://viciproperties.com/role/VICIPROPERTIESLPCONSOLIDATEDBALANCESHEETSUNAUDITEDParenthetical" xlink:type="simple" xlink:href="vici-20260331.xsd#VICIPROPERTIESLPCONSOLIDATEDBALANCESHEETSUNAUDITEDParenthetical"/>
  <link:definitionLink xlink:role="http://viciproperties.com/role/VICIPROPERTIESLPCONSOLIDATEDBALANCESHEETSUNAUDITEDParenthetical" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_019caf84-9631-7080-bc08-f3530a5c4935" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_019caf84-9631-79e1-baea-380531f86fba" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_019caf84-9631-7080-bc08-f3530a5c4935" xlink:to="loc_us-gaap_StatementTable_019caf84-9631-79e1-baea-380531f86fba" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019caf84-9631-75d3-9aaa-3d4c2fa069ea" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_019caf84-9631-79e1-baea-380531f86fba" xlink:to="loc_dei_LegalEntityAxis_019caf84-9631-75d3-9aaa-3d4c2fa069ea" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019caf84-9631-75d3-9aaa-3d4c2fa069ea_default" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019caf84-9631-75d3-9aaa-3d4c2fa069ea" xlink:to="loc_dei_EntityDomain_019caf84-9631-75d3-9aaa-3d4c2fa069ea_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019caf84-9631-744d-bc2b-abab63a2972e" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019caf84-9631-75d3-9aaa-3d4c2fa069ea" xlink:to="loc_dei_EntityDomain_019caf84-9631-744d-bc2b-abab63a2972e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_VICIPropertiesLPMember_019caf84-9631-7a9d-b96b-5a81c700793e" xlink:href="vici-20260331.xsd#vici_VICIPropertiesLPMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019caf84-9631-744d-bc2b-abab63a2972e" xlink:to="loc_vici_VICIPropertiesLPMember_019caf84-9631-7a9d-b96b-5a81c700793e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019caf84-9631-7382-b0a2-1d09c1303147" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_019caf84-9631-79e1-baea-380531f86fba" xlink:to="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019caf84-9631-7382-b0a2-1d09c1303147" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivableTypeDomain_019caf84-9631-7382-b0a2-1d09c1303147_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ReceivableTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019caf84-9631-7382-b0a2-1d09c1303147" xlink:to="loc_us-gaap_ReceivableTypeDomain_019caf84-9631-7382-b0a2-1d09c1303147_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivableTypeDomain_019caf84-9631-7b6f-bef3-7c02de3b0be8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ReceivableTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019caf84-9631-7382-b0a2-1d09c1303147" xlink:to="loc_us-gaap_ReceivableTypeDomain_019caf84-9631-7b6f-bef3-7c02de3b0be8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceReceivablesMember_019caf84-9631-7c10-a895-eebab5bcb11a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceReceivablesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReceivableTypeDomain_019caf84-9631-7b6f-bef3-7c02de3b0be8" xlink:to="loc_us-gaap_FinanceReceivablesMember_019caf84-9631-7c10-a895-eebab5bcb11a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LoansReceivableAndSecuritiesMember_019caf84-9631-76f8-ac92-0d4bd1f8be92" xlink:href="vici-20260331.xsd#vici_LoansReceivableAndSecuritiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReceivableTypeDomain_019caf84-9631-7b6f-bef3-7c02de3b0be8" xlink:to="loc_vici_LoansReceivableAndSecuritiesMember_019caf84-9631-76f8-ac92-0d4bd1f8be92" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LimitedPartnersCapitalAccountUnitsIssued_019caf84-9631-74f2-848e-84b786b05c6f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LimitedPartnersCapitalAccountUnitsIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019caf84-9631-7080-bc08-f3530a5c4935" xlink:to="loc_us-gaap_LimitedPartnersCapitalAccountUnitsIssued_019caf84-9631-74f2-848e-84b786b05c6f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LimitedPartnersCapitalAccountUnitsOutstanding_019caf84-9631-7d5a-8575-54178f186340" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LimitedPartnersCapitalAccountUnitsOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019caf84-9631-7080-bc08-f3530a5c4935" xlink:to="loc_us-gaap_LimitedPartnersCapitalAccountUnitsOutstanding_019caf84-9631-7d5a-8575-54178f186340" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetInvestmentInLeaseAllowanceForCreditLossExcludingAccruedInterest_019caf84-9631-7b69-84fb-77ca1458f61a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetInvestmentInLeaseAllowanceForCreditLossExcludingAccruedInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019caf84-9631-7080-bc08-f3530a5c4935" xlink:to="loc_us-gaap_NetInvestmentInLeaseAllowanceForCreditLossExcludingAccruedInterest_019caf84-9631-7b69-84fb-77ca1458f61a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest_019caf84-9631-7384-9683-642df85274cc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019caf84-9631-7080-bc08-f3530a5c4935" xlink:to="loc_us-gaap_FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest_019caf84-9631-7384-9683-642df85274cc" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_OtherAssetsSalesTypeSubleasesExcludingAccruedInterestAllowanceForCreditLosses_019caf84-9631-7637-9a2f-a45e548fb83e" xlink:href="vici-20260331.xsd#vici_OtherAssetsSalesTypeSubleasesExcludingAccruedInterestAllowanceForCreditLosses"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019caf84-9631-7080-bc08-f3530a5c4935" xlink:to="loc_vici_OtherAssetsSalesTypeSubleasesExcludingAccruedInterestAllowanceForCreditLosses_019caf84-9631-7637-9a2f-a45e548fb83e" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://viciproperties.com/role/VICIPROPERTIESLPCONSOLIDATEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVEINCOMEUNAUDITED" xlink:type="simple" xlink:href="vici-20260331.xsd#VICIPROPERTIESLPCONSOLIDATEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVEINCOMEUNAUDITED"/>
  <link:definitionLink xlink:role="http://viciproperties.com/role/VICIPROPERTIESLPCONSOLIDATEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVEINCOMEUNAUDITED" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_019caf84-9631-7c21-918e-2b96886d8868" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_019caf84-9631-70e0-8c4b-18450d6ac22a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_019caf84-9631-7c21-918e-2b96886d8868" xlink:to="loc_us-gaap_StatementTable_019caf84-9631-70e0-8c4b-18450d6ac22a" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019caf84-9631-773a-959c-9c7d62d67aab" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_019caf84-9631-70e0-8c4b-18450d6ac22a" xlink:to="loc_dei_LegalEntityAxis_019caf84-9631-773a-959c-9c7d62d67aab" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019caf84-9631-773a-959c-9c7d62d67aab_default" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019caf84-9631-773a-959c-9c7d62d67aab" xlink:to="loc_dei_EntityDomain_019caf84-9631-773a-959c-9c7d62d67aab_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019caf84-9631-70f1-afa1-2b34d625f5a5" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019caf84-9631-773a-959c-9c7d62d67aab" xlink:to="loc_dei_EntityDomain_019caf84-9631-70f1-afa1-2b34d625f5a5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_VICIPropertiesLPMember_019caf84-9631-7349-8cf6-824dd4c922d6" xlink:href="vici-20260331.xsd#vici_VICIPropertiesLPMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019caf84-9631-70f1-afa1-2b34d625f5a5" xlink:to="loc_vici_VICIPropertiesLPMember_019caf84-9631-7349-8cf6-824dd4c922d6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenuesAbstract_019caf84-9631-7d78-949a-f4f83e5d204e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RevenuesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019caf84-9631-7c21-918e-2b96886d8868" xlink:to="loc_us-gaap_RevenuesAbstract_019caf84-9631-7d78-949a-f4f83e5d204e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesTypeLeaseInterestIncome_019caf84-9631-75f4-a581-9cfd57ee6438" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SalesTypeLeaseInterestIncome"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenuesAbstract_019caf84-9631-7d78-949a-f4f83e5d204e" xlink:to="loc_us-gaap_SalesTypeLeaseInterestIncome_019caf84-9631-75f4-a581-9cfd57ee6438" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestAndDividendIncomeOperating_019caf84-9631-73ee-b94e-ab3491575685" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestAndDividendIncomeOperating"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenuesAbstract_019caf84-9631-7d78-949a-f4f83e5d204e" xlink:to="loc_us-gaap_InterestAndDividendIncomeOperating_019caf84-9631-73ee-b94e-ab3491575685" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherIncome_019caf84-9631-7d65-8dc2-8053a0f5b0dd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherIncome"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenuesAbstract_019caf84-9631-7d78-949a-f4f83e5d204e" xlink:to="loc_us-gaap_OtherIncome_019caf84-9631-7d65-8dc2-8053a0f5b0dd" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_019caf84-9631-788d-8f21-db5e56aa7a2f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Revenues"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenuesAbstract_019caf84-9631-7d78-949a-f4f83e5d204e" xlink:to="loc_us-gaap_Revenues_019caf84-9631-788d-8f21-db5e56aa7a2f" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpensesAbstract_019caf84-9631-7a4a-84c1-03d234e2ec05" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingExpensesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019caf84-9631-7c21-918e-2b96886d8868" xlink:to="loc_us-gaap_OperatingExpensesAbstract_019caf84-9631-7a4a-84c1-03d234e2ec05" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpense_019caf84-9631-778b-9933-8a931c38c076" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GeneralAndAdministrativeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_019caf84-9631-7a4a-84c1-03d234e2ec05" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpense_019caf84-9631-778b-9933-8a931c38c076" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Depreciation_019caf84-9631-7bdb-ba09-1e227b4052b9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Depreciation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_019caf84-9631-7a4a-84c1-03d234e2ec05" xlink:to="loc_us-gaap_Depreciation_019caf84-9631-7bdb-ba09-1e227b4052b9" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherExpenses_019caf84-9631-7d3d-b1c5-d144ac56856c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherExpenses"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_019caf84-9631-7a4a-84c1-03d234e2ec05" xlink:to="loc_us-gaap_OtherExpenses_019caf84-9631-7d3d-b1c5-d144ac56856c" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_FinancingReceivableExcludingAccruedInterestNetInvestmentInLeaseAndLoansCreditLossExpenseReversal_019caf84-9631-7954-8d53-78d9afa50597" xlink:href="vici-20260331.xsd#vici_FinancingReceivableExcludingAccruedInterestNetInvestmentInLeaseAndLoansCreditLossExpenseReversal"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_019caf84-9631-7a4a-84c1-03d234e2ec05" xlink:to="loc_vici_FinancingReceivableExcludingAccruedInterestNetInvestmentInLeaseAndLoansCreditLossExpenseReversal_019caf84-9631-7954-8d53-78d9afa50597" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_TransactionAndAcquisitionExpense_019caf84-9631-765e-a6db-64414237d917" xlink:href="vici-20260331.xsd#vici_TransactionAndAcquisitionExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_019caf84-9631-7a4a-84c1-03d234e2ec05" xlink:to="loc_vici_TransactionAndAcquisitionExpense_019caf84-9631-765e-a6db-64414237d917" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_OperatingCostsAndExpensesNetOfAdjustments_019caf84-9631-7c67-bd2b-1def50ec943c" xlink:href="vici-20260331.xsd#vici_OperatingCostsAndExpensesNetOfAdjustments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_019caf84-9631-7a4a-84c1-03d234e2ec05" xlink:to="loc_vici_OperatingCostsAndExpensesNetOfAdjustments_019caf84-9631-7c67-bd2b-1def50ec943c" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseNonoperating_019caf84-9631-7bde-a658-fa88af8f0001" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestExpenseNonoperating"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019caf84-9631-7c21-918e-2b96886d8868" xlink:to="loc_us-gaap_InterestExpenseNonoperating_019caf84-9631-7bde-a658-fa88af8f0001" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIncomeInterest_019caf84-9631-7bda-8bc9-0cb6bb0255c3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InvestmentIncomeInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019caf84-9631-7c21-918e-2b96886d8868" xlink:to="loc_us-gaap_InvestmentIncomeInterest_019caf84-9631-7bda-8bc9-0cb6bb0255c3" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingGainsLosses_019caf84-9631-77ea-80f9-6b0ac2f1136a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherNonoperatingGainsLosses"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019caf84-9631-7c21-918e-2b96886d8868" xlink:to="loc_us-gaap_OtherNonoperatingGainsLosses_019caf84-9631-77ea-80f9-6b0ac2f1136a" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019caf84-9631-72b0-b66f-5e4e119551b8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019caf84-9631-7c21-918e-2b96886d8868" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019caf84-9631-72b0-b66f-5e4e119551b8" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_019caf84-9631-7214-a37e-07ab8b2e4820" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019caf84-9631-7c21-918e-2b96886d8868" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_019caf84-9631-7214-a37e-07ab8b2e4820" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_019caf84-9631-772a-8d1a-7035b453fb5b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProfitLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019caf84-9631-7c21-918e-2b96886d8868" xlink:to="loc_us-gaap_ProfitLoss_019caf84-9631-772a-8d1a-7035b453fb5b" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_019caf84-9631-72b5-b9e3-f5e7baf6182e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLossAttributableToNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019caf84-9631-7c21-918e-2b96886d8868" xlink:to="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_019caf84-9631-72b5-b9e3-f5e7baf6182e" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAllocatedToLimitedPartners_019caf84-9631-7b74-833b-5d8565c36660" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLossAllocatedToLimitedPartners"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019caf84-9631-7c21-918e-2b96886d8868" xlink:to="loc_us-gaap_NetIncomeLossAllocatedToLimitedPartners_019caf84-9631-7b74-833b-5d8565c36660" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareReconciliationAbstract_019caf84-9631-7122-ae7e-c12ae4866381" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EarningsPerShareReconciliationAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019caf84-9631-7c21-918e-2b96886d8868" xlink:to="loc_us-gaap_EarningsPerShareReconciliationAbstract_019caf84-9631-7122-ae7e-c12ae4866381" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareBasic_019caf84-9631-76a0-b02c-eb6503fa3569" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EarningsPerShareBasic"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareReconciliationAbstract_019caf84-9631-7122-ae7e-c12ae4866381" xlink:to="loc_us-gaap_EarningsPerShareBasic_019caf84-9631-76a0-b02c-eb6503fa3569" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareDiluted_019caf84-9631-7ee0-bf44-9d8cbbfc5c95" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EarningsPerShareDiluted"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareReconciliationAbstract_019caf84-9631-7122-ae7e-c12ae4866381" xlink:to="loc_us-gaap_EarningsPerShareDiluted_019caf84-9631-7ee0-bf44-9d8cbbfc5c95" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract_019caf84-9631-700a-afa7-a06c64f74c19" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019caf84-9631-7c21-918e-2b96886d8868" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract_019caf84-9631-700a-afa7-a06c64f74c19" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_019caf84-9631-71e4-b42c-d531528f8a10" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract_019caf84-9631-700a-afa7-a06c64f74c19" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_019caf84-9631-71e4-b42c-d531528f8a10" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019caf84-9631-7601-97b0-a700f519ae52" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract_019caf84-9631-700a-afa7-a06c64f74c19" xlink:to="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019caf84-9631-7601-97b0-a700f519ae52" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossTaxAbstract_019caf84-9631-727c-9020-70ab4ffb3924" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossTaxAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019caf84-9631-7c21-918e-2b96886d8868" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossTaxAbstract_019caf84-9631-727c-9020-70ab4ffb3924" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAllocatedToLimitedPartners_019caf84-9631-7165-b63d-79def4007b17" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLossAllocatedToLimitedPartners"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseAfterAdjustmentsAndTaxParent_019caf84-9631-700c-a441-1df6ebed4957" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseAfterAdjustmentsAndTaxParent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossTaxAbstract_019caf84-9631-727c-9020-70ab4ffb3924" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseAfterAdjustmentsAndTaxParent_019caf84-9631-700c-a441-1df6ebed4957" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent_019caf84-9631-72f8-808e-42207707a181" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossTaxAbstract_019caf84-9631-727c-9020-70ab4ffb3924" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent_019caf84-9631-72f8-808e-42207707a181" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_019caf84-9631-7104-9f19-70d15e0071aa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossTaxAbstract_019caf84-9631-727c-9020-70ab4ffb3924" xlink:to="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_019caf84-9631-7104-9f19-70d15e0071aa" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_019caf84-9631-7612-a21f-619c826ba96d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ComprehensiveIncomeNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossTaxAbstract_019caf84-9631-727c-9020-70ab4ffb3924" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTax_019caf84-9631-7612-a21f-619c826ba96d" xlink:type="arc" order="5"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://viciproperties.com/role/VICIPROPERTIESLPCONSOLIDATEDSTATEMENTSOFPARTNERSCAPITALUNAUDITED" xlink:type="simple" xlink:href="vici-20260331.xsd#VICIPROPERTIESLPCONSOLIDATEDSTATEMENTSOFPARTNERSCAPITALUNAUDITED"/>
  <link:definitionLink xlink:role="http://viciproperties.com/role/VICIPROPERTIESLPCONSOLIDATEDSTATEMENTSOFPARTNERSCAPITALUNAUDITED" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_019caf84-9631-7032-b9f7-87eac01cd001" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_019caf84-9631-76ea-9265-554d4f8f2d7c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_019caf84-9631-7032-b9f7-87eac01cd001" xlink:to="loc_us-gaap_StatementTable_019caf84-9631-76ea-9265-554d4f8f2d7c" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019caf84-9631-7a2a-be3e-214e103f8b87" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_019caf84-9631-76ea-9265-554d4f8f2d7c" xlink:to="loc_dei_LegalEntityAxis_019caf84-9631-7a2a-be3e-214e103f8b87" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019caf84-9631-7a2a-be3e-214e103f8b87_default" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019caf84-9631-7a2a-be3e-214e103f8b87" xlink:to="loc_dei_EntityDomain_019caf84-9631-7a2a-be3e-214e103f8b87_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019caf84-9631-7b62-ae12-f5ba01c724b8" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019caf84-9631-7a2a-be3e-214e103f8b87" xlink:to="loc_dei_EntityDomain_019caf84-9631-7b62-ae12-f5ba01c724b8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_VICIPropertiesLPMember_019caf84-9631-7d5e-8ac9-b8fd980c415c" xlink:href="vici-20260331.xsd#vici_VICIPropertiesLPMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019caf84-9631-7b62-ae12-f5ba01c724b8" xlink:to="loc_vici_VICIPropertiesLPMember_019caf84-9631-7d5e-8ac9-b8fd980c415c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PartnerTypeOfPartnersCapitalAccountAxis_019caf84-9631-73b3-a81e-fbb45d922094" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PartnerTypeOfPartnersCapitalAccountAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_019caf84-9631-76ea-9265-554d4f8f2d7c" xlink:to="loc_us-gaap_PartnerTypeOfPartnersCapitalAccountAxis_019caf84-9631-73b3-a81e-fbb45d922094" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PartnerTypeOfPartnersCapitalAccountNameDomain_019caf84-9631-73b3-a81e-fbb45d922094_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PartnerTypeOfPartnersCapitalAccountNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PartnerTypeOfPartnersCapitalAccountAxis_019caf84-9631-73b3-a81e-fbb45d922094" xlink:to="loc_us-gaap_PartnerTypeOfPartnersCapitalAccountNameDomain_019caf84-9631-73b3-a81e-fbb45d922094_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PartnerTypeOfPartnersCapitalAccountNameDomain_019caf84-9631-70e5-8187-c60e78a95e0a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PartnerTypeOfPartnersCapitalAccountNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PartnerTypeOfPartnersCapitalAccountAxis_019caf84-9631-73b3-a81e-fbb45d922094" xlink:to="loc_us-gaap_PartnerTypeOfPartnersCapitalAccountNameDomain_019caf84-9631-70e5-8187-c60e78a95e0a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LimitedPartnerMember_019caf84-9631-7c1d-89e2-9c8173c8e9d8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LimitedPartnerMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PartnerTypeOfPartnersCapitalAccountNameDomain_019caf84-9631-70e5-8187-c60e78a95e0a" xlink:to="loc_us-gaap_LimitedPartnerMember_019caf84-9631-7c1d-89e2-9c8173c8e9d8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_019caf84-9631-725a-96af-bddcba2228d6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PartnerTypeOfPartnersCapitalAccountNameDomain_019caf84-9631-70e5-8187-c60e78a95e0a" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_019caf84-9631-725a-96af-bddcba2228d6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoncontrollingInterestMember_019caf84-9631-7a92-b360-d85e38783eb5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NoncontrollingInterestMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PartnerTypeOfPartnersCapitalAccountNameDomain_019caf84-9631-70e5-8187-c60e78a95e0a" xlink:to="loc_us-gaap_NoncontrollingInterestMember_019caf84-9631-7a92-b360-d85e38783eb5" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInPartnersCapitalRollForward_019caf84-9631-7189-a0ee-37a3f35654c4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInPartnersCapitalRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019caf84-9631-7032-b9f7-87eac01cd001" xlink:to="loc_us-gaap_IncreaseDecreaseInPartnersCapitalRollForward_019caf84-9631-7189-a0ee-37a3f35654c4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest_019caf84-9631-79d4-8c99-24637f1e02c2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInPartnersCapitalRollForward_019caf84-9631-7189-a0ee-37a3f35654c4" xlink:to="loc_us-gaap_PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest_019caf84-9631-79d4-8c99-24637f1e02c2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_019caf84-9631-794e-b4d6-d02f4a356be7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProfitLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInPartnersCapitalRollForward_019caf84-9631-7189-a0ee-37a3f35654c4" xlink:to="loc_us-gaap_ProfitLoss_019caf84-9631-794e-b4d6-d02f4a356be7" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PartnersCapitalAccountContributions_019caf84-9631-75dc-983f-f8b77c30cc54" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PartnersCapitalAccountContributions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInPartnersCapitalRollForward_019caf84-9631-7189-a0ee-37a3f35654c4" xlink:to="loc_us-gaap_PartnersCapitalAccountContributions_019caf84-9631-75dc-983f-f8b77c30cc54" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PartnersCapitalAccountDistributions_019caf84-9631-7cb0-9b63-61ed1a716c71" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PartnersCapitalAccountDistributions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInPartnersCapitalRollForward_019caf84-9631-7189-a0ee-37a3f35654c4" xlink:to="loc_us-gaap_PartnersCapitalAccountDistributions_019caf84-9631-7cb0-9b63-61ed1a716c71" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders_019caf84-9631-77d6-b313-24cca31935bf" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInPartnersCapitalRollForward_019caf84-9631-7189-a0ee-37a3f35654c4" xlink:to="loc_us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders_019caf84-9631-77d6-b313-24cca31935bf" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_019caf84-9631-7928-a41a-8fa3848f2eba" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInPartnersCapitalRollForward_019caf84-9631-7189-a0ee-37a3f35654c4" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_019caf84-9631-7928-a41a-8fa3848f2eba" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax_019caf84-9631-7c75-a005-86371e0fa0b2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInPartnersCapitalRollForward_019caf84-9631-7189-a0ee-37a3f35654c4" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax_019caf84-9631-7c75-a005-86371e0fa0b2" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax_019caf84-9631-74f0-9180-af32d127813a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInPartnersCapitalRollForward_019caf84-9631-7189-a0ee-37a3f35654c4" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax_019caf84-9631-74f0-9180-af32d127813a" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_019caf84-9631-7649-ab06-19bda5315d7d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInPartnersCapitalRollForward_019caf84-9631-7189-a0ee-37a3f35654c4" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_019caf84-9631-7649-ab06-19bda5315d7d" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest_019caf84-9631-7c87-a4ae-605de58781c4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PartnersCapitalIncludingPortionAttributableToNoncontrollingInterest"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://viciproperties.com/role/VICIPROPERTIESLPCONSOLIDATEDSTATEMENTSOFCASHFLOWSUNAUDITED" xlink:type="simple" xlink:href="vici-20260331.xsd#VICIPROPERTIESLPCONSOLIDATEDSTATEMENTSOFCASHFLOWSUNAUDITED"/>
  <link:definitionLink xlink:role="http://viciproperties.com/role/VICIPROPERTIESLPCONSOLIDATEDSTATEMENTSOFCASHFLOWSUNAUDITED" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_019caf84-9631-7df3-8025-7122240e2c32" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_019caf84-9631-7d90-82ec-3fdee62f3ca1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_019caf84-9631-7df3-8025-7122240e2c32" xlink:to="loc_us-gaap_StatementTable_019caf84-9631-7d90-82ec-3fdee62f3ca1" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019caf84-9631-72cc-9b2c-d82c56db4c65" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_019caf84-9631-7d90-82ec-3fdee62f3ca1" xlink:to="loc_dei_LegalEntityAxis_019caf84-9631-72cc-9b2c-d82c56db4c65" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019caf84-9631-72cc-9b2c-d82c56db4c65_default" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019caf84-9631-72cc-9b2c-d82c56db4c65" xlink:to="loc_dei_EntityDomain_019caf84-9631-72cc-9b2c-d82c56db4c65_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019caf84-9631-712b-9e18-06232058ae2c" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019caf84-9631-72cc-9b2c-d82c56db4c65" xlink:to="loc_dei_EntityDomain_019caf84-9631-712b-9e18-06232058ae2c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_VICIPropertiesLPMember_019caf84-9631-7f4d-8303-374ad1485219" xlink:href="vici-20260331.xsd#vici_VICIPropertiesLPMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019caf84-9631-712b-9e18-06232058ae2c" xlink:to="loc_vici_VICIPropertiesLPMember_019caf84-9631-7f4d-8303-374ad1485219" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_019caf84-9631-72f4-96ae-77c507a50b35" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019caf84-9631-7df3-8025-7122240e2c32" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_019caf84-9631-72f4-96ae-77c507a50b35" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_019caf84-9631-750e-aed0-d5a02a76d51a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProfitLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_019caf84-9631-72f4-96ae-77c507a50b35" xlink:to="loc_us-gaap_ProfitLoss_019caf84-9631-750e-aed0-d5a02a76d51a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_019caf84-9631-707b-ada4-20a797e2a125" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_019caf84-9631-72f4-96ae-77c507a50b35" xlink:to="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_019caf84-9631-707b-ada4-20a797e2a125" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_NonCashLeasingAndFinancingAdjustments_019caf84-9631-7421-8d0f-319ce44e63c2" xlink:href="vici-20260331.xsd#vici_NonCashLeasingAndFinancingAdjustments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_019caf84-9631-707b-ada4-20a797e2a125" xlink:to="loc_vici_NonCashLeasingAndFinancingAdjustments_019caf84-9631-7421-8d0f-319ce44e63c2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation_019caf84-9631-76a6-be5c-cb76225d3f42" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_019caf84-9631-707b-ada4-20a797e2a125" xlink:to="loc_us-gaap_ShareBasedCompensation_019caf84-9631-76a6-be5c-cb76225d3f42" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Depreciation_019caf84-9631-753b-876e-915fb3ed371b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Depreciation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_019caf84-9631-707b-ada4-20a797e2a125" xlink:to="loc_us-gaap_Depreciation_019caf84-9631-753b-876e-915fb3ed371b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingGainsLosses_019caf84-9631-7130-bede-3b498cbcacb6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherNonoperatingGainsLosses"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_019caf84-9631-707b-ada4-20a797e2a125" xlink:to="loc_us-gaap_OtherNonoperatingGainsLosses_019caf84-9631-7130-bede-3b498cbcacb6" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfFinancingCostsAndDiscounts_019caf84-9631-7a58-94ed-123a3851d371" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AmortizationOfFinancingCostsAndDiscounts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_019caf84-9631-707b-ada4-20a797e2a125" xlink:to="loc_us-gaap_AmortizationOfFinancingCostsAndDiscounts_019caf84-9631-7a58-94ed-123a3851d371" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_FinancingReceivableExcludingAccruedInterestNetInvestmentInLeaseAndLoansCreditLossExpenseReversal_019caf84-9631-7132-be62-741ca8a759cd" xlink:href="vici-20260331.xsd#vici_FinancingReceivableExcludingAccruedInterestNetInvestmentInLeaseAndLoansCreditLossExpenseReversal"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_019caf84-9631-707b-ada4-20a797e2a125" xlink:to="loc_vici_FinancingReceivableExcludingAccruedInterestNetInvestmentInLeaseAndLoansCreditLossExpenseReversal_019caf84-9631-7132-be62-741ca8a759cd" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxesAndTaxCredits_019caf84-9631-777e-9c15-bf181bf08401" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredIncomeTaxesAndTaxCredits"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_019caf84-9631-707b-ada4-20a797e2a125" xlink:to="loc_us-gaap_DeferredIncomeTaxesAndTaxCredits_019caf84-9631-777e-9c15-bf181bf08401" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_InterestIncomePaidInKind_019caf84-9631-736d-a2e6-705a85fb1113" xlink:href="vici-20260331.xsd#vici_InterestIncomePaidInKind"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_019caf84-9631-707b-ada4-20a797e2a125" xlink:to="loc_vici_InterestIncomePaidInKind_019caf84-9631-736d-a2e6-705a85fb1113" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_PaidInKindInterestReceived_019dd66c-0fec-7dc0-b060-78f31e2b82c4" xlink:href="vici-20260331.xsd#vici_PaidInKindInterestReceived"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_019caf84-9631-707b-ada4-20a797e2a125" xlink:to="loc_vici_PaidInKindInterestReceived_019dd66c-0fec-7dc0-b060-78f31e2b82c4" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_NetProceedsFromDerivativeInstrumentOperatingActivities_019caf84-9631-7da1-ad2f-44f7354925a7" xlink:href="vici-20260331.xsd#vici_NetProceedsFromDerivativeInstrumentOperatingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_019caf84-9631-707b-ada4-20a797e2a125" xlink:to="loc_vici_NetProceedsFromDerivativeInstrumentOperatingActivities_019caf84-9631-7da1-ad2f-44f7354925a7" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_019caf84-9631-7f01-8b4f-15e3637b5a76" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_019caf84-9631-707b-ada4-20a797e2a125" xlink:to="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_019caf84-9631-7f01-8b4f-15e3637b5a76" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherCurrentAssets_019caf84-9631-7e8a-a9d1-975a7e41c9a2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInOtherCurrentAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_019caf84-9631-7f01-8b4f-15e3637b5a76" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherCurrentAssets_019caf84-9631-7e8a-a9d1-975a7e41c9a2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedLiabilities_019caf84-9631-7744-be22-b751f3f1e5c8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInAccruedLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_019caf84-9631-7f01-8b4f-15e3637b5a76" xlink:to="loc_us-gaap_IncreaseDecreaseInAccruedLiabilities_019caf84-9631-7744-be22-b751f3f1e5c8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherDeferredLiability_019caf84-9631-71cf-8517-afb1f0959943" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInOtherDeferredLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_019caf84-9631-7f01-8b4f-15e3637b5a76" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherDeferredLiability_019caf84-9631-71cf-8517-afb1f0959943" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019caf84-9631-7663-b22f-6145c7b74e9f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_019caf84-9631-72f4-96ae-77c507a50b35" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019caf84-9631-7663-b22f-6145c7b74e9f" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_019caf84-9631-7dfc-9bf4-2facc667cf79" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019caf84-9631-7df3-8025-7122240e2c32" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_019caf84-9631-7dfc-9bf4-2facc667cf79" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireLoansReceivable_019caf84-9631-7d9a-a4c0-153f25758f57" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsToAcquireLoansReceivable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_019caf84-9631-7dfc-9bf4-2facc667cf79" xlink:to="loc_us-gaap_PaymentsToAcquireLoansReceivable_019caf84-9631-7d9a-a4c0-153f25758f57" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleAndCollectionOfMortgageNotesReceivable_019caf84-9631-7974-8380-1a1f408b3c13" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromSaleAndCollectionOfMortgageNotesReceivable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_019caf84-9631-7dfc-9bf4-2facc667cf79" xlink:to="loc_us-gaap_ProceedsFromSaleAndCollectionOfMortgageNotesReceivable_019caf84-9631-7974-8380-1a1f408b3c13" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_PaymentsOfCapitalizedTransactionCosts_019caf84-9631-7aa1-9477-03dbcafa529b" xlink:href="vici-20260331.xsd#vici_PaymentsOfCapitalizedTransactionCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_019caf84-9631-7dfc-9bf4-2facc667cf79" xlink:to="loc_vici_PaymentsOfCapitalizedTransactionCosts_019caf84-9631-7aa1-9477-03dbcafa529b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfShorttermInvestments_019caf84-9631-7528-bd6d-3f6c46c8182d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfShorttermInvestments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_019caf84-9631-7dfc-9bf4-2facc667cf79" xlink:to="loc_us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfShorttermInvestments_019caf84-9631-7528-bd6d-3f6c46c8182d" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireOtherPropertyPlantAndEquipment_019caf84-9631-7c1f-8f6a-bd9f596f6d3f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsToAcquireOtherPropertyPlantAndEquipment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_019caf84-9631-7dfc-9bf4-2facc667cf79" xlink:to="loc_us-gaap_PaymentsToAcquireOtherPropertyPlantAndEquipment_019caf84-9631-7c1f-8f6a-bd9f596f6d3f" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019caf84-9631-7409-8be8-bbdf52368c36" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_019caf84-9631-7dfc-9bf4-2facc667cf79" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019caf84-9631-7409-8be8-bbdf52368c36" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_019caf84-9631-7158-aa2a-c4b92bbb03a4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019caf84-9631-7df3-8025-7122240e2c32" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_019caf84-9631-7158-aa2a-c4b92bbb03a4" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromContributionsFromParent_019caf84-9631-7edd-ba66-aeef58791b32" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromContributionsFromParent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_019caf84-9631-7158-aa2a-c4b92bbb03a4" xlink:to="loc_us-gaap_ProceedsFromContributionsFromParent_019caf84-9631-7edd-ba66-aeef58791b32" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfCapitalDistribution_019caf84-9631-7c4f-ae95-89422483f7f5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsOfCapitalDistribution"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_019caf84-9631-7158-aa2a-c4b92bbb03a4" xlink:to="loc_us-gaap_PaymentsOfCapitalDistribution_019caf84-9631-7c4f-ae95-89422483f7f5" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromLinesOfCredit_019caf84-9631-75aa-9a68-af8050b27e30" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromLinesOfCredit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_019caf84-9631-7158-aa2a-c4b92bbb03a4" xlink:to="loc_us-gaap_ProceedsFromLinesOfCredit_019caf84-9631-75aa-9a68-af8050b27e30" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfLinesOfCredit_019caf84-9631-7209-bd20-aa29db1c285c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RepaymentsOfLinesOfCredit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_019caf84-9631-7158-aa2a-c4b92bbb03a4" xlink:to="loc_us-gaap_RepaymentsOfLinesOfCredit_019caf84-9631-7209-bd20-aa29db1c285c" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDebtIssuanceCosts_019caf84-9631-736f-8057-1a1e76080204" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsOfDebtIssuanceCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_019caf84-9631-7158-aa2a-c4b92bbb03a4" xlink:to="loc_us-gaap_PaymentsOfDebtIssuanceCosts_019caf84-9631-736f-8057-1a1e76080204" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_019caf84-9631-7c31-994c-541c7465e0e5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_019caf84-9631-7158-aa2a-c4b92bbb03a4" xlink:to="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_019caf84-9631-7c31-994c-541c7465e0e5" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_DistributionsToNonControllingInterests_019caf84-9631-711b-90b8-2bd28bc72ef1" xlink:href="vici-20260331.xsd#vici_DistributionsToNonControllingInterests"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_019caf84-9631-7158-aa2a-c4b92bbb03a4" xlink:to="loc_vici_DistributionsToNonControllingInterests_019caf84-9631-711b-90b8-2bd28bc72ef1" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019caf84-9631-7cab-8f8f-c3fd16333ce2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_019caf84-9631-7158-aa2a-c4b92bbb03a4" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019caf84-9631-7cab-8f8f-c3fd16333ce2" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_019caf84-9631-7780-99ed-8f0dbf7d0413" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019caf84-9631-7df3-8025-7122240e2c32" xlink:to="loc_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_019caf84-9631-7780-99ed-8f0dbf7d0413" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019caf84-9631-7607-8d53-81ddd627509f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019caf84-9631-7df3-8025-7122240e2c32" xlink:to="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019caf84-9631-7607-8d53-81ddd627509f" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_019caf84-9631-76c8-8c35-273a0135946d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019caf84-9631-7df3-8025-7122240e2c32" xlink:to="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_019caf84-9631-76c8-8c35-273a0135946d" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_019caf84-9631-7b4e-ba68-e2a1a446d8c3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SupplementalCashFlowInformationAbstract_019caf84-9631-77e2-b910-d64d02cc7769" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SupplementalCashFlowInformationAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019caf84-9631-7df3-8025-7122240e2c32" xlink:to="loc_us-gaap_SupplementalCashFlowInformationAbstract_019caf84-9631-77e2-b910-d64d02cc7769" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestPaidNet_019caf84-9631-79e7-8da1-5162fb4cbfbd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestPaidNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SupplementalCashFlowInformationAbstract_019caf84-9631-77e2-b910-d64d02cc7769" xlink:to="loc_us-gaap_InterestPaidNet_019caf84-9631-79e7-8da1-5162fb4cbfbd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxesPaid_019caf84-9631-7c50-af3c-3eccb1246650" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxesPaid"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SupplementalCashFlowInformationAbstract_019caf84-9631-77e2-b910-d64d02cc7769" xlink:to="loc_us-gaap_IncomeTaxesPaid_019caf84-9631-7c50-af3c-3eccb1246650" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_019caf84-9631-7e83-a340-4f4ba4d8a89b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019caf84-9631-7df3-8025-7122240e2c32" xlink:to="loc_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_019caf84-9631-7e83-a340-4f4ba4d8a89b" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_NonCashDistributionsDeclaredNotPaid_019caf84-9631-74c8-9d4b-2b7290455eb8" xlink:href="vici-20260331.xsd#vici_NonCashDistributionsDeclaredNotPaid"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_019caf84-9631-7e83-a340-4f4ba4d8a89b" xlink:to="loc_vici_NonCashDistributionsDeclaredNotPaid_019caf84-9631-74c8-9d4b-2b7290455eb8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_DebtIssuanceCostsPayable_019caf84-9631-7f5b-9231-391aaecb70e2" xlink:href="vici-20260331.xsd#vici_DebtIssuanceCostsPayable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_019caf84-9631-7e83-a340-4f4ba4d8a89b" xlink:to="loc_vici_DebtIssuanceCostsPayable_019caf84-9631-7f5b-9231-391aaecb70e2" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_AccruedCapitalizedTransactionCosts_019caf84-9631-78be-9693-22e0e94832f1" xlink:href="vici-20260331.xsd#vici_AccruedCapitalizedTransactionCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_019caf84-9631-7e83-a340-4f4ba4d8a89b" xlink:to="loc_vici_AccruedCapitalizedTransactionCosts_019caf84-9631-78be-9693-22e0e94832f1" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_NoncashChangeInInvestmentLeasesInvestingActivities_019caf84-9631-79ab-b2eb-92c70da2b49b" xlink:href="vici-20260331.xsd#vici_NoncashChangeInInvestmentLeasesInvestingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_019caf84-9631-7e83-a340-4f4ba4d8a89b" xlink:to="loc_vici_NoncashChangeInInvestmentLeasesInvestingActivities_019caf84-9631-79ab-b2eb-92c70da2b49b" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://viciproperties.com/role/BusinessandOrganizationDetails" xlink:type="simple" xlink:href="vici-20260331.xsd#BusinessandOrganizationDetails"/>
  <link:definitionLink xlink:role="http://viciproperties.com/role/BusinessandOrganizationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_vici_OrganizationConsolidationAndPresentationOfFinancialStatementsLineItems_019caf84-9631-7806-bb66-a7bc8eee4b65" xlink:href="vici-20260331.xsd#vici_OrganizationConsolidationAndPresentationOfFinancialStatementsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_OrganizationConsolidationAndPresentationOfFinancialStatementsTable_019caf84-9631-7675-95f6-e268224781a3" xlink:href="vici-20260331.xsd#vici_OrganizationConsolidationAndPresentationOfFinancialStatementsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_vici_OrganizationConsolidationAndPresentationOfFinancialStatementsLineItems_019caf84-9631-7806-bb66-a7bc8eee4b65" xlink:to="loc_vici_OrganizationConsolidationAndPresentationOfFinancialStatementsTable_019caf84-9631-7675-95f6-e268224781a3" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis_019caf84-9631-7f9d-8174-317997cff5c4" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_vici_OrganizationConsolidationAndPresentationOfFinancialStatementsTable_019caf84-9631-7675-95f6-e268224781a3" xlink:to="loc_srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis_019caf84-9631-7f9d-8174-317997cff5c4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MortgageLoansOnRealEstateNamePropertyTypeDomain_019caf84-9631-7f9d-8174-317997cff5c4_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MortgageLoansOnRealEstateNamePropertyTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis_019caf84-9631-7f9d-8174-317997cff5c4" xlink:to="loc_srt_MortgageLoansOnRealEstateNamePropertyTypeDomain_019caf84-9631-7f9d-8174-317997cff5c4_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MortgageLoansOnRealEstateNamePropertyTypeDomain_019caf84-9631-7da2-84fb-f6e265061e9d" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MortgageLoansOnRealEstateNamePropertyTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis_019caf84-9631-7f9d-8174-317997cff5c4" xlink:to="loc_srt_MortgageLoansOnRealEstateNamePropertyTypeDomain_019caf84-9631-7da2-84fb-f6e265061e9d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_ExperientialAssetsMember_019caf84-9631-7074-a8cc-556d088ee6fb" xlink:href="vici-20260331.xsd#vici_ExperientialAssetsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_MortgageLoansOnRealEstateNamePropertyTypeDomain_019caf84-9631-7da2-84fb-f6e265061e9d" xlink:to="loc_vici_ExperientialAssetsMember_019caf84-9631-7074-a8cc-556d088ee6fb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_GamingPropertiesMember_019caf84-9631-7d3f-9fc6-12fe1ab249a9" xlink:href="vici-20260331.xsd#vici_GamingPropertiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_MortgageLoansOnRealEstateNamePropertyTypeDomain_019caf84-9631-7da2-84fb-f6e265061e9d" xlink:to="loc_vici_GamingPropertiesMember_019caf84-9631-7d3f-9fc6-12fe1ab249a9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_OtherExperientialPropertiesMember_019caf84-9631-7967-85d9-948e991ddf44" xlink:href="vici-20260331.xsd#vici_OtherExperientialPropertiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_MortgageLoansOnRealEstateNamePropertyTypeDomain_019caf84-9631-7da2-84fb-f6e265061e9d" xlink:to="loc_vici_OtherExperientialPropertiesMember_019caf84-9631-7967-85d9-948e991ddf44" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_GolfCoursesMember_019caf84-9631-77d6-9306-d0a386a06e7c" xlink:href="vici-20260331.xsd#vici_GolfCoursesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_MortgageLoansOnRealEstateNamePropertyTypeDomain_019caf84-9631-7da2-84fb-f6e265061e9d" xlink:to="loc_vici_GolfCoursesMember_019caf84-9631-77d6-9306-d0a386a06e7c" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NumberOfRealEstateProperties_019caf84-9631-7aec-9c28-0b9e72fc5763" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NumberOfRealEstateProperties"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_vici_OrganizationConsolidationAndPresentationOfFinancialStatementsLineItems_019caf84-9631-7806-bb66-a7bc8eee4b65" xlink:to="loc_us-gaap_NumberOfRealEstateProperties_019caf84-9631-7aec-9c28-0b9e72fc5763" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://viciproperties.com/role/SummaryofSignificantAccountingPoliciesDetails" xlink:type="simple" xlink:href="vici-20260331.xsd#SummaryofSignificantAccountingPoliciesDetails"/>
  <link:definitionLink xlink:role="http://viciproperties.com/role/SummaryofSignificantAccountingPoliciesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_019caf84-9631-73ec-a67d-abd6cd99184f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_019caf84-9631-766d-bde1-8aa1c28cbeb2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_019caf84-9631-73ec-a67d-abd6cd99184f" xlink:to="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_019caf84-9631-766d-bde1-8aa1c28cbeb2" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_OwnershipAxis_019caf84-9631-7b59-8e2b-919ed97f714f" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_OwnershipAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_019caf84-9631-766d-bde1-8aa1c28cbeb2" xlink:to="loc_srt_OwnershipAxis_019caf84-9631-7b59-8e2b-919ed97f714f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_OwnershipDomain_019caf84-9631-7b59-8e2b-919ed97f714f_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_OwnershipDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_OwnershipAxis_019caf84-9631-7b59-8e2b-919ed97f714f" xlink:to="loc_srt_OwnershipDomain_019caf84-9631-7b59-8e2b-919ed97f714f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_OwnershipDomain_019caf84-9631-7462-ba60-02e8237bb1f6" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_OwnershipDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_OwnershipAxis_019caf84-9631-7b59-8e2b-919ed97f714f" xlink:to="loc_srt_OwnershipDomain_019caf84-9631-7462-ba60-02e8237bb1f6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_VICIOPMember_019caf84-9631-7ca5-b0aa-0550ca49c454" xlink:href="vici-20260331.xsd#vici_VICIOPMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_OwnershipDomain_019caf84-9631-7462-ba60-02e8237bb1f6" xlink:to="loc_vici_VICIOPMember_019caf84-9631-7ca5-b0aa-0550ca49c454" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_HarrahsJolietLandCoLLCMember_019caf84-9631-7db8-8ee2-406cfa384d5f" xlink:href="vici-20260331.xsd#vici_HarrahsJolietLandCoLLCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_OwnershipDomain_019caf84-9631-7462-ba60-02e8237bb1f6" xlink:to="loc_vici_HarrahsJolietLandCoLLCMember_019caf84-9631-7db8-8ee2-406cfa384d5f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_ViciBowlHoldCoLLCMember_019caf84-9631-735e-82f0-9385d04fd69b" xlink:href="vici-20260331.xsd#vici_ViciBowlHoldCoLLCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_OwnershipDomain_019caf84-9631-7462-ba60-02e8237bb1f6" xlink:to="loc_vici_ViciBowlHoldCoLLCMember_019caf84-9631-735e-82f0-9385d04fd69b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MajorCustomersAxis_019caf84-9631-7208-a8d2-19ac75a339ef" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MajorCustomersAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_019caf84-9631-766d-bde1-8aa1c28cbeb2" xlink:to="loc_srt_MajorCustomersAxis_019caf84-9631-7208-a8d2-19ac75a339ef" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_NameOfMajorCustomerDomain_019caf84-9631-7208-a8d2-19ac75a339ef_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_NameOfMajorCustomerDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_MajorCustomersAxis_019caf84-9631-7208-a8d2-19ac75a339ef" xlink:to="loc_srt_NameOfMajorCustomerDomain_019caf84-9631-7208-a8d2-19ac75a339ef_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_NameOfMajorCustomerDomain_019caf84-9631-7a69-b796-43ad55c0f09b" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_NameOfMajorCustomerDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_MajorCustomersAxis_019caf84-9631-7208-a8d2-19ac75a339ef" xlink:to="loc_srt_NameOfMajorCustomerDomain_019caf84-9631-7a69-b796-43ad55c0f09b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_MGMResortsInternationalMember_019caf84-9631-7246-9530-a30adc0ccaee" xlink:href="vici-20260331.xsd#vici_MGMResortsInternationalMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_019caf84-9631-7a69-b796-43ad55c0f09b" xlink:to="loc_vici_MGMResortsInternationalMember_019caf84-9631-7246-9530-a30adc0ccaee" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_CaesarsEntertainmentCorporationMember_019caf84-9631-763e-a20a-5df7067df639" xlink:href="vici-20260331.xsd#vici_CaesarsEntertainmentCorporationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_019caf84-9631-7a69-b796-43ad55c0f09b" xlink:to="loc_vici_CaesarsEntertainmentCorporationMember_019caf84-9631-763e-a20a-5df7067df639" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019caf84-9631-74c1-8eb8-0e88f3ed5034" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_019caf84-9631-766d-bde1-8aa1c28cbeb2" xlink:to="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019caf84-9631-74c1-8eb8-0e88f3ed5034" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019caf84-9631-74c1-8eb8-0e88f3ed5034_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019caf84-9631-74c1-8eb8-0e88f3ed5034" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019caf84-9631-74c1-8eb8-0e88f3ed5034_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019caf84-9631-7fbb-8bc1-d7c9b9104014" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019caf84-9631-74c1-8eb8-0e88f3ed5034" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019caf84-9631-7fbb-8bc1-d7c9b9104014" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesRevenueNetMember_019caf84-9631-75c9-9d84-8ce8556c6eff" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SalesRevenueNetMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019caf84-9631-7fbb-8bc1-d7c9b9104014" xlink:to="loc_us-gaap_SalesRevenueNetMember_019caf84-9631-75c9-9d84-8ce8556c6eff" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_ContractualRentBenchmarkMember_019caf84-9631-7bde-9034-cc31d4be2738" xlink:href="vici-20260331.xsd#vici_ContractualRentBenchmarkMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019caf84-9631-7fbb-8bc1-d7c9b9104014" xlink:to="loc_vici_ContractualRentBenchmarkMember_019caf84-9631-7bde-9034-cc31d4be2738" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByTypeAxis_019caf84-9631-735a-9de3-e0831ab8e796" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_019caf84-9631-766d-bde1-8aa1c28cbeb2" xlink:to="loc_us-gaap_ConcentrationRiskByTypeAxis_019caf84-9631-735a-9de3-e0831ab8e796" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_019caf84-9631-735a-9de3-e0831ab8e796_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_019caf84-9631-735a-9de3-e0831ab8e796" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_019caf84-9631-735a-9de3-e0831ab8e796_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_019caf84-9631-73c9-b9e7-8daf976c1959" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_019caf84-9631-735a-9de3-e0831ab8e796" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_019caf84-9631-73c9-b9e7-8daf976c1959" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CustomerConcentrationRiskMember_019caf84-9631-7adf-b5d7-d82c163edc11" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CustomerConcentrationRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskTypeDomain_019caf84-9631-73c9-b9e7-8daf976c1959" xlink:to="loc_us-gaap_CustomerConcentrationRiskMember_019caf84-9631-7adf-b5d7-d82c163edc11" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementGeographicalAxis_019caf84-9631-7f13-ac99-6b7c30fc8ffb" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_StatementGeographicalAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_019caf84-9631-766d-bde1-8aa1c28cbeb2" xlink:to="loc_srt_StatementGeographicalAxis_019caf84-9631-7f13-ac99-6b7c30fc8ffb" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_019caf84-9631-7f13-ac99-6b7c30fc8ffb_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementGeographicalAxis_019caf84-9631-7f13-ac99-6b7c30fc8ffb" xlink:to="loc_srt_SegmentGeographicalDomain_019caf84-9631-7f13-ac99-6b7c30fc8ffb_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_019caf84-9631-75dc-acf4-149c9a2b948e" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementGeographicalAxis_019caf84-9631-7f13-ac99-6b7c30fc8ffb" xlink:to="loc_srt_SegmentGeographicalDomain_019caf84-9631-75dc-acf4-149c9a2b948e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_PropertyLasVegasStripMember_019caf84-9631-764e-88f4-e2ef60648096" xlink:href="vici-20260331.xsd#vici_PropertyLasVegasStripMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019caf84-9631-75dc-acf4-149c9a2b948e" xlink:to="loc_vici_PropertyLasVegasStripMember_019caf84-9631-764e-88f4-e2ef60648096" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners_019caf84-9631-7c24-966f-5c87c5e10370" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_019caf84-9631-73ec-a67d-abd6cd99184f" xlink:to="loc_us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners_019caf84-9631-7c24-966f-5c87c5e10370" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NumberOfOperatingSegments_019caf84-9631-7f68-860e-a591d5b453e3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NumberOfOperatingSegments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_019caf84-9631-73ec-a67d-abd6cd99184f" xlink:to="loc_us-gaap_NumberOfOperatingSegments_019caf84-9631-7f68-860e-a591d5b453e3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NumberOfReportableSegments_019caf84-9631-706a-9ec9-f5351d7ea760" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NumberOfReportableSegments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_019caf84-9631-73ec-a67d-abd6cd99184f" xlink:to="loc_us-gaap_NumberOfReportableSegments_019caf84-9631-706a-9ec9-f5351d7ea760" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCash_019caf84-9631-7299-a92e-bfc49f1f3e90" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestrictedCash"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_019caf84-9631-73ec-a67d-abd6cd99184f" xlink:to="loc_us-gaap_RestrictedCash_019caf84-9631-7299-a92e-bfc49f1f3e90" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermInvestments_019caf84-9631-7621-8093-ad5c3a8f025c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShortTermInvestments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_019caf84-9631-73ec-a67d-abd6cd99184f" xlink:to="loc_us-gaap_ShortTermInvestments_019caf84-9631-7621-8093-ad5c3a8f025c" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LessorLeasingArrangementsSalesTypeLeasesNumberOfRenewalOptions_019caf84-9631-796d-86d7-f98f1bb4afb4" xlink:href="vici-20260331.xsd#vici_LessorLeasingArrangementsSalesTypeLeasesNumberOfRenewalOptions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_019caf84-9631-73ec-a67d-abd6cd99184f" xlink:to="loc_vici_LessorLeasingArrangementsSalesTypeLeasesNumberOfRenewalOptions_019caf84-9631-796d-86d7-f98f1bb4afb4" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_InvestmentInLeasesPeriodInWhichProjectionsAreApplied_019caf84-9631-717f-9fab-f28021f82f5b" xlink:href="vici-20260331.xsd#vici_InvestmentInLeasesPeriodInWhichProjectionsAreApplied"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_019caf84-9631-73ec-a67d-abd6cd99184f" xlink:to="loc_vici_InvestmentInLeasesPeriodInWhichProjectionsAreApplied_019caf84-9631-717f-9fab-f28021f82f5b" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskPercentage1_019caf84-9631-75a0-8576-49ffc75f1b80" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskPercentage1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_019caf84-9631-73ec-a67d-abd6cd99184f" xlink:to="loc_us-gaap_ConcentrationRiskPercentage1_019caf84-9631-75a0-8576-49ffc75f1b80" xlink:type="arc" order="7"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://viciproperties.com/role/RealEstateTransactionsGamehostTransactionDetails" xlink:type="simple" xlink:href="vici-20260331.xsd#RealEstateTransactionsGamehostTransactionDetails"/>
  <link:definitionLink xlink:role="http://viciproperties.com/role/RealEstateTransactionsGamehostTransactionDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionLineItems_019d66de-d99b-7f32-a91d-886b1f4d930a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetAcquisitionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionTable_019d66de-d99b-7f1c-9c1b-eef014e32e5f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetAcquisitionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019d66de-d99b-7f32-a91d-886b1f4d930a" xlink:to="loc_us-gaap_AssetAcquisitionTable_019d66de-d99b-7f1c-9c1b-eef014e32e5f" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionAxis_019d66de-d99b-72f3-9e20-81009682127c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetAcquisitionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_AssetAcquisitionTable_019d66de-d99b-7f1c-9c1b-eef014e32e5f" xlink:to="loc_us-gaap_AssetAcquisitionAxis_019d66de-d99b-72f3-9e20-81009682127c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionDomain_019d66de-d99b-72f3-9e20-81009682127c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetAcquisitionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AssetAcquisitionAxis_019d66de-d99b-72f3-9e20-81009682127c" xlink:to="loc_us-gaap_AssetAcquisitionDomain_019d66de-d99b-72f3-9e20-81009682127c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionDomain_019d66de-d99b-70c5-9ed3-cad736d76f62" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetAcquisitionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AssetAcquisitionAxis_019d66de-d99b-72f3-9e20-81009682127c" xlink:to="loc_us-gaap_AssetAcquisitionDomain_019d66de-d99b-70c5-9ed3-cad736d76f62" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_GamehostTransactionMember_019d66de-d99b-758b-ac8e-3bf16c047c78" xlink:href="vici-20260331.xsd#vici_GamehostTransactionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionDomain_019d66de-d99b-70c5-9ed3-cad736d76f62" xlink:to="loc_vici_GamehostTransactionMember_019d66de-d99b-758b-ac8e-3bf16c047c78" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019d66de-d99b-7b6a-abc2-4fb24df3f1d7" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_AssetAcquisitionTable_019d66de-d99b-7f1c-9c1b-eef014e32e5f" xlink:to="loc_srt_RangeAxis_019d66de-d99b-7b6a-abc2-4fb24df3f1d7" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019d66de-d99b-7b6a-abc2-4fb24df3f1d7_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_019d66de-d99b-7b6a-abc2-4fb24df3f1d7" xlink:to="loc_srt_RangeMember_019d66de-d99b-7b6a-abc2-4fb24df3f1d7_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019d66de-d99b-7bcd-a8f7-56a286f7902b" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_019d66de-d99b-7b6a-abc2-4fb24df3f1d7" xlink:to="loc_srt_RangeMember_019d66de-d99b-7bcd-a8f7-56a286f7902b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_019d66de-d99b-7862-9b38-93a104f53efb" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019d66de-d99b-7bcd-a8f7-56a286f7902b" xlink:to="loc_srt_MinimumMember_019d66de-d99b-7862-9b38-93a104f53efb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019d66de-d99b-721c-846b-dd5aa409f038" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019d66de-d99b-7bcd-a8f7-56a286f7902b" xlink:to="loc_srt_MaximumMember_019d66de-d99b-721c-846b-dd5aa409f038" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_019d6fc4-bd22-72b3-85f0-a49f6723db14" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_AssetAcquisitionTable_019d66de-d99b-7f1c-9c1b-eef014e32e5f" xlink:to="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_019d6fc4-bd22-72b3-85f0-a49f6723db14" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_019d6fc4-bd22-72b3-85f0-a49f6723db14_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_019d6fc4-bd22-72b3-85f0-a49f6723db14" xlink:to="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_019d6fc4-bd22-72b3-85f0-a49f6723db14_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_019d6fc4-bd22-77cb-8fb4-4c1a01c8e2f8" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_019d6fc4-bd22-72b3-85f0-a49f6723db14" xlink:to="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_019d6fc4-bd22-77cb-8fb4-4c1a01c8e2f8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_PUREMasterLeaseMember_019d6fc5-0c25-7209-8738-bdcfda0e6ada" xlink:href="vici-20260331.xsd#vici_PUREMasterLeaseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_019d6fc4-bd22-77cb-8fb4-4c1a01c8e2f8" xlink:to="loc_vici_PUREMasterLeaseMember_019d6fc5-0c25-7209-8738-bdcfda0e6ada" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_NumberOfHotelsAcquired_019d7020-5196-7772-b2e7-8f3221610756" xlink:href="vici-20260331.xsd#vici_NumberOfHotelsAcquired"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019d66de-d99b-7f32-a91d-886b1f4d930a" xlink:to="loc_vici_NumberOfHotelsAcquired_019d7020-5196-7772-b2e7-8f3221610756" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionConsiderationTransferred_019d66de-d99b-730e-bbb1-eebc6a21dad0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetAcquisitionConsiderationTransferred"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019d66de-d99b-7f32-a91d-886b1f4d930a" xlink:to="loc_us-gaap_AssetAcquisitionConsiderationTransferred_019d66de-d99b-730e-bbb1-eebc6a21dad0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_IncreaseDecreaseInAnnualRentPaymentsReceivable_019d66de-d99b-7237-b093-02336351bc59" xlink:href="vici-20260331.xsd#vici_IncreaseDecreaseInAnnualRentPaymentsReceivable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019d66de-d99b-7f32-a91d-886b1f4d930a" xlink:to="loc_vici_IncreaseDecreaseInAnnualRentPaymentsReceivable_019d66de-d99b-7237-b093-02336351bc59" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_AnnualEscalationRatePercent_019d66de-d99b-76bd-b0b7-c16dee904c3d" xlink:href="vici-20260331.xsd#vici_AnnualEscalationRatePercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019d66de-d99b-7f32-a91d-886b1f4d930a" xlink:to="loc_vici_AnnualEscalationRatePercent_019d66de-d99b-76bd-b0b7-c16dee904c3d" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LessorSalesTypeLeaseTermOfContract1_019d66de-d99b-7a55-a5db-03104d4763e7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LessorSalesTypeLeaseTermOfContract1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019d66de-d99b-7f32-a91d-886b1f4d930a" xlink:to="loc_us-gaap_LessorSalesTypeLeaseTermOfContract1_019d66de-d99b-7a55-a5db-03104d4763e7" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LessorLeasingArrangementsSalesTypeLeasesNumberOfRenewalOptions_019d66de-d99b-70f5-8e78-a88228e50903" xlink:href="vici-20260331.xsd#vici_LessorLeasingArrangementsSalesTypeLeasesNumberOfRenewalOptions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019d66de-d99b-7f32-a91d-886b1f4d930a" xlink:to="loc_vici_LessorLeasingArrangementsSalesTypeLeasesNumberOfRenewalOptions_019d66de-d99b-70f5-8e78-a88228e50903" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LessorSalesTypeLeaseRenewalTerm1_019d66de-d99b-766f-89fc-104b2a59e846" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LessorSalesTypeLeaseRenewalTerm1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019d66de-d99b-7f32-a91d-886b1f4d930a" xlink:to="loc_us-gaap_LessorSalesTypeLeaseRenewalTerm1_019d66de-d99b-766f-89fc-104b2a59e846" xlink:type="arc" order="6"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://viciproperties.com/role/RealEstateTransactionsNorthfieldParkSeveranceLeaseDetails" xlink:type="simple" xlink:href="vici-20260331.xsd#RealEstateTransactionsNorthfieldParkSeveranceLeaseDetails"/>
  <link:definitionLink xlink:role="http://viciproperties.com/role/RealEstateTransactionsNorthfieldParkSeveranceLeaseDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_019d9b44-98b1-70e1-a34f-b9375f8aef86" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessAcquisitionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_019d9b44-98b1-7c99-a28c-1c708d936a04" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019d9b44-98b1-70e1-a34f-b9375f8aef86" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_019d9b44-98b1-7c99-a28c-1c708d936a04" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_019d9b44-98b1-741d-a3c8-8c7a06987e8f" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_019d9b44-98b1-7c99-a28c-1c708d936a04" xlink:to="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_019d9b44-98b1-741d-a3c8-8c7a06987e8f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_019d9b44-98b1-741d-a3c8-8c7a06987e8f_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_019d9b44-98b1-741d-a3c8-8c7a06987e8f" xlink:to="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_019d9b44-98b1-741d-a3c8-8c7a06987e8f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_019d9b44-98b1-7c61-b9ec-d3160f0b5116" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_019d9b44-98b1-741d-a3c8-8c7a06987e8f" xlink:to="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_019d9b44-98b1-7c61-b9ec-d3160f0b5116" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_NorthfieldParkLeaseMember_019d9b44-98b1-7d0c-92bf-705d169d8063" xlink:href="vici-20260331.xsd#vici_NorthfieldParkLeaseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_019d9b44-98b1-7c61-b9ec-d3160f0b5116" xlink:to="loc_vici_NorthfieldParkLeaseMember_019d9b44-98b1-7d0c-92bf-705d169d8063" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_019d9b44-98b1-7050-8ccf-8de45d03ee74" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubsequentEventTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_019d9b44-98b1-7c99-a28c-1c708d936a04" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_019d9b44-98b1-7050-8ccf-8de45d03ee74" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_019d9b44-98b1-7050-8ccf-8de45d03ee74_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_019d9b44-98b1-7050-8ccf-8de45d03ee74" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_019d9b44-98b1-7050-8ccf-8de45d03ee74_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_019d9b44-98b1-723b-bd20-e0cf25f29bf5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_019d9b44-98b1-7050-8ccf-8de45d03ee74" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_019d9b44-98b1-723b-bd20-e0cf25f29bf5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventMember_019d9b44-98b1-78b8-9fce-55a1ca545dd3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubsequentEventMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_019d9b44-98b1-723b-bd20-e0cf25f29bf5" xlink:to="loc_us-gaap_SubsequentEventMember_019d9b44-98b1-78b8-9fce-55a1ca545dd3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019d9b44-98b1-7fd7-8c59-8eeaede89039" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_019d9b44-98b1-7c99-a28c-1c708d936a04" xlink:to="loc_srt_RangeAxis_019d9b44-98b1-7fd7-8c59-8eeaede89039" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019d9b44-98b1-7fd7-8c59-8eeaede89039_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_019d9b44-98b1-7fd7-8c59-8eeaede89039" xlink:to="loc_srt_RangeMember_019d9b44-98b1-7fd7-8c59-8eeaede89039_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019d9b44-98b1-79c3-8430-479218bbdafd" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_019d9b44-98b1-7fd7-8c59-8eeaede89039" xlink:to="loc_srt_RangeMember_019d9b44-98b1-79c3-8430-479218bbdafd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_019d9b44-98b1-7546-93a3-df8ac8393d66" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019d9b44-98b1-79c3-8430-479218bbdafd" xlink:to="loc_srt_MinimumMember_019d9b44-98b1-7546-93a3-df8ac8393d66" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019d9b44-98b1-7180-8880-08fff6f53770" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019d9b44-98b1-79c3-8430-479218bbdafd" xlink:to="loc_srt_MaximumMember_019d9b44-98b1-7180-8880-08fff6f53770" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_ContractualAnnualRentAmounts_019d9b44-98b1-7f88-b0a7-9c17b797d6af" xlink:href="vici-20260331.xsd#vici_ContractualAnnualRentAmounts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019d9b44-98b1-70e1-a34f-b9375f8aef86" xlink:to="loc_vici_ContractualAnnualRentAmounts_019d9b44-98b1-7f88-b0a7-9c17b797d6af" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LessorDirectFinancingLeaseTermOfContract1_019d9b44-98b1-7aa5-8561-d5306342fbbc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LessorDirectFinancingLeaseTermOfContract1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019d9b44-98b1-70e1-a34f-b9375f8aef86" xlink:to="loc_us-gaap_LessorDirectFinancingLeaseTermOfContract1_019d9b44-98b1-7aa5-8561-d5306342fbbc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LessorDirectFinancingLeaseNumberOfRenewalOptions_019dd4a4-2bd0-7bb7-8533-aa04cd8cbe15" xlink:href="vici-20260331.xsd#vici_LessorDirectFinancingLeaseNumberOfRenewalOptions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019d9b44-98b1-70e1-a34f-b9375f8aef86" xlink:to="loc_vici_LessorDirectFinancingLeaseNumberOfRenewalOptions_019dd4a4-2bd0-7bb7-8533-aa04cd8cbe15" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LessorDirectFinancingLeaseRenewalTerm1_019d9b44-98b1-7d6a-a1b2-57463e59a7b4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LessorDirectFinancingLeaseRenewalTerm1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019d9b44-98b1-70e1-a34f-b9375f8aef86" xlink:to="loc_us-gaap_LessorDirectFinancingLeaseRenewalTerm1_019d9b44-98b1-7d6a-a1b2-57463e59a7b4" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_AnnualEscalationRatePercent_019d9b44-98b1-7fcc-9d6b-5260ce094a4b" xlink:href="vici-20260331.xsd#vici_AnnualEscalationRatePercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019d9b44-98b1-70e1-a34f-b9375f8aef86" xlink:to="loc_vici_AnnualEscalationRatePercent_019d9b44-98b1-7fcc-9d6b-5260ce094a4b" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_AnnualRentIncreaseCapPercent_019d9b44-98b1-726f-a228-0502e87b9590" xlink:href="vici-20260331.xsd#vici_AnnualRentIncreaseCapPercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019d9b44-98b1-70e1-a34f-b9375f8aef86" xlink:to="loc_vici_AnnualRentIncreaseCapPercent_019d9b44-98b1-726f-a228-0502e87b9590" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_PercentageOfAnnualNetRevenueOfYearlyMinimumExpenditure_019d9b44-98b1-7522-9756-527518d05ed8" xlink:href="vici-20260331.xsd#vici_PercentageOfAnnualNetRevenueOfYearlyMinimumExpenditure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_019d9b44-98b1-70e1-a34f-b9375f8aef86" xlink:to="loc_vici_PercentageOfAnnualNetRevenueOfYearlyMinimumExpenditure_019d9b44-98b1-7522-9756-527518d05ed8" xlink:type="arc" order="6"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://viciproperties.com/role/RealEstateTransactionsScheduleofLoanOriginationsDetails" xlink:type="simple" xlink:href="vici-20260331.xsd#RealEstateTransactionsScheduleofLoanOriginationsDetails"/>
  <link:definitionLink xlink:role="http://viciproperties.com/role/RealEstateTransactionsScheduleofLoanOriginationsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionLineItems_019caf84-9631-74d4-bed8-fe8d5947de05" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetAcquisitionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionTable_019caf84-9631-7620-981d-6b7dc1a1c922" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetAcquisitionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019caf84-9631-74d4-bed8-fe8d5947de05" xlink:to="loc_us-gaap_AssetAcquisitionTable_019caf84-9631-7620-981d-6b7dc1a1c922" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LoanPortfolioAxis_019caf84-9631-74af-a86f-324d377342a5" xlink:href="vici-20260331.xsd#vici_LoanPortfolioAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_AssetAcquisitionTable_019caf84-9631-7620-981d-6b7dc1a1c922" xlink:to="loc_vici_LoanPortfolioAxis_019caf84-9631-74af-a86f-324d377342a5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LoanPortfolioDomain_019caf84-9631-74af-a86f-324d377342a5_default" xlink:href="vici-20260331.xsd#vici_LoanPortfolioDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_vici_LoanPortfolioAxis_019caf84-9631-74af-a86f-324d377342a5" xlink:to="loc_vici_LoanPortfolioDomain_019caf84-9631-74af-a86f-324d377342a5_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LoanPortfolioDomain_019caf84-9631-75c5-a118-ac41a51de3c7" xlink:href="vici-20260331.xsd#vici_LoanPortfolioDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_vici_LoanPortfolioAxis_019caf84-9631-74af-a86f-324d377342a5" xlink:to="loc_vici_LoanPortfolioDomain_019caf84-9631-75c5-a118-ac41a51de3c7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_BeverlyHillsMezzanineMember_019caf84-9631-7d9f-b40b-c34ccddb681d" xlink:href="vici-20260331.xsd#vici_BeverlyHillsMezzanineMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_vici_LoanPortfolioDomain_019caf84-9631-75c5-a118-ac41a51de3c7" xlink:to="loc_vici_BeverlyHillsMezzanineMember_019caf84-9631-7d9f-b40b-c34ccddb681d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_ChelseaPiersStamfordLoanMember_019cd140-496e-79a8-baca-8bc1661eb650" xlink:href="vici-20260331.xsd#vici_ChelseaPiersStamfordLoanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_vici_LoanPortfolioDomain_019caf84-9631-75c5-a118-ac41a51de3c7" xlink:to="loc_vici_ChelseaPiersStamfordLoanMember_019cd140-496e-79a8-baca-8bc1661eb650" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_ChelseaPiersJerseyCityLoanMember_019cd140-9265-747d-aeb6-3a05a8ae995d" xlink:href="vici-20260331.xsd#vici_ChelseaPiersJerseyCityLoanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_vici_LoanPortfolioDomain_019caf84-9631-75c5-a118-ac41a51de3c7" xlink:to="loc_vici_ChelseaPiersJerseyCityLoanMember_019cd140-9265-747d-aeb6-3a05a8ae995d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_FinancingReceivableMaximumPrincipalAmount_019caf84-9631-73a1-8f83-c233fe8f23ef" xlink:href="vici-20260331.xsd#vici_FinancingReceivableMaximumPrincipalAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019caf84-9631-74d4-bed8-fe8d5947de05" xlink:to="loc_vici_FinancingReceivableMaximumPrincipalAmount_019caf84-9631-73a1-8f83-c233fe8f23ef" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://viciproperties.com/role/RealEstateTransactionsOneBeverlyHillsMezzanineLoanDetails" xlink:type="simple" xlink:href="vici-20260331.xsd#RealEstateTransactionsOneBeverlyHillsMezzanineLoanDetails"/>
  <link:definitionLink xlink:role="http://viciproperties.com/role/RealEstateTransactionsOneBeverlyHillsMezzanineLoanDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionLineItems_019d66e0-a6b8-7d5e-bb07-0a490a706ed2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetAcquisitionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionTable_019d66e0-a6b8-7744-97fe-40d263ff0eaa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetAcquisitionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019d66e0-a6b8-7d5e-bb07-0a490a706ed2" xlink:to="loc_us-gaap_AssetAcquisitionTable_019d66e0-a6b8-7744-97fe-40d263ff0eaa" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LoanPortfolioAxis_019d66e0-a6b8-7449-b516-60c03b5a81f6" xlink:href="vici-20260331.xsd#vici_LoanPortfolioAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_AssetAcquisitionTable_019d66e0-a6b8-7744-97fe-40d263ff0eaa" xlink:to="loc_vici_LoanPortfolioAxis_019d66e0-a6b8-7449-b516-60c03b5a81f6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LoanPortfolioDomain_019d66e0-a6b8-7449-b516-60c03b5a81f6_default" xlink:href="vici-20260331.xsd#vici_LoanPortfolioDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_vici_LoanPortfolioAxis_019d66e0-a6b8-7449-b516-60c03b5a81f6" xlink:to="loc_vici_LoanPortfolioDomain_019d66e0-a6b8-7449-b516-60c03b5a81f6_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LoanPortfolioDomain_019d66e0-a6b8-711c-94b1-9828069890c6" xlink:href="vici-20260331.xsd#vici_LoanPortfolioDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_vici_LoanPortfolioAxis_019d66e0-a6b8-7449-b516-60c03b5a81f6" xlink:to="loc_vici_LoanPortfolioDomain_019d66e0-a6b8-711c-94b1-9828069890c6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_BeverlyHillsMezzanineMember_019d66e0-a6b8-7fb3-8403-2fdc07537615" xlink:href="vici-20260331.xsd#vici_BeverlyHillsMezzanineMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_vici_LoanPortfolioDomain_019d66e0-a6b8-711c-94b1-9828069890c6" xlink:to="loc_vici_BeverlyHillsMezzanineMember_019d66e0-a6b8-7fb3-8403-2fdc07537615" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_019d66e0-a6b8-780b-8fcb-7382f84736ba" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_AssetAcquisitionTable_019d66e0-a6b8-7744-97fe-40d263ff0eaa" xlink:to="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_019d66e0-a6b8-780b-8fcb-7382f84736ba" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_019d66e0-a6b8-780b-8fcb-7382f84736ba_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_019d66e0-a6b8-780b-8fcb-7382f84736ba" xlink:to="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_019d66e0-a6b8-780b-8fcb-7382f84736ba_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_019d66e0-a6b8-7e35-9c0d-828b14d62a71" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_019d66e0-a6b8-780b-8fcb-7382f84736ba" xlink:to="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_019d66e0-a6b8-7e35-9c0d-828b14d62a71" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_OneBeverlyHillsMember_019d66e0-a6b8-75c4-b0d2-559bcc8c734c" xlink:href="vici-20260331.xsd#vici_OneBeverlyHillsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_019d66e0-a6b8-7e35-9c0d-828b14d62a71" xlink:to="loc_vici_OneBeverlyHillsMember_019d66e0-a6b8-75c4-b0d2-559bcc8c734c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_TheBeverlyHiltonMember_019d66e0-a6b8-77a5-8fbc-0898d4f03a9b" xlink:href="vici-20260331.xsd#vici_TheBeverlyHiltonMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_019d66e0-a6b8-7e35-9c0d-828b14d62a71" xlink:to="loc_vici_TheBeverlyHiltonMember_019d66e0-a6b8-77a5-8fbc-0898d4f03a9b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019dd4a6-1770-759b-a392-ca9e51f76955" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_AssetAcquisitionTable_019d66e0-a6b8-7744-97fe-40d263ff0eaa" xlink:to="loc_dei_LegalEntityAxis_019dd4a6-1770-759b-a392-ca9e51f76955" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019dd4a6-1770-759b-a392-ca9e51f76955_default" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019dd4a6-1770-759b-a392-ca9e51f76955" xlink:to="loc_dei_EntityDomain_019dd4a6-1770-759b-a392-ca9e51f76955_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019dd4a6-1770-7a52-9ee2-562337574acb" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019dd4a6-1770-759b-a392-ca9e51f76955" xlink:to="loc_dei_EntityDomain_019dd4a6-1770-7a52-9ee2-562337574acb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LenderMember_019dd4ac-64a8-75f7-9838-ccecab48e71f" xlink:href="vici-20260331.xsd#vici_LenderMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019dd4a6-1770-7a52-9ee2-562337574acb" xlink:to="loc_vici_LenderMember_019dd4ac-64a8-75f7-9838-ccecab48e71f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_FinancingReceivableMaximumPrincipalAmount_019d66e0-a6b8-7e5e-80f5-2c3c8f9f67f2" xlink:href="vici-20260331.xsd#vici_FinancingReceivableMaximumPrincipalAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019d66e0-a6b8-7d5e-bb07-0a490a706ed2" xlink:to="loc_vici_FinancingReceivableMaximumPrincipalAmount_019d66e0-a6b8-7e5e-80f5-2c3c8f9f67f2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_FinancingReceivableCommitmentAmount_019d66e0-a6b8-799d-af40-05e30a4ed11d" xlink:href="vici-20260331.xsd#vici_FinancingReceivableCommitmentAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019d66e0-a6b8-7d5e-bb07-0a490a706ed2" xlink:to="loc_vici_FinancingReceivableCommitmentAmount_019d66e0-a6b8-799d-af40-05e30a4ed11d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AreaOfLand_019d66e0-a6b8-7d8e-bcdc-24b919e92e71" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AreaOfLand"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019d66e0-a6b8-7d5e-bb07-0a490a706ed2" xlink:to="loc_us-gaap_AreaOfLand_019d66e0-a6b8-7d8e-bcdc-24b919e92e71" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_FinancingReceivableInitialCommitmentAmount_019dd4b0-07f7-7414-863f-8539b9ade929" xlink:href="vici-20260331.xsd#vici_FinancingReceivableInitialCommitmentAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019d66e0-a6b8-7d5e-bb07-0a490a706ed2" xlink:to="loc_vici_FinancingReceivableInitialCommitmentAmount_019dd4b0-07f7-7414-863f-8539b9ade929" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_FinancingReceivableIncrementalCommitmentAmount_019d66e0-a6b8-7dfb-bccc-5b3a80c7a4d7" xlink:href="vici-20260331.xsd#vici_FinancingReceivableIncrementalCommitmentAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019d66e0-a6b8-7d5e-bb07-0a490a706ed2" xlink:to="loc_vici_FinancingReceivableIncrementalCommitmentAmount_019d66e0-a6b8-7dfb-bccc-5b3a80c7a4d7" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_FinancingReceivableInitialTerm_019d66e0-a6b8-7022-bb6a-21be60af2fcf" xlink:href="vici-20260331.xsd#vici_FinancingReceivableInitialTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019d66e0-a6b8-7d5e-bb07-0a490a706ed2" xlink:to="loc_vici_FinancingReceivableInitialTerm_019d66e0-a6b8-7022-bb6a-21be60af2fcf" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_FinancingReceivableExtensionOption_019d66e0-a6b8-746a-b3fa-cb480e167a31" xlink:href="vici-20260331.xsd#vici_FinancingReceivableExtensionOption"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019d66e0-a6b8-7d5e-bb07-0a490a706ed2" xlink:to="loc_vici_FinancingReceivableExtensionOption_019d66e0-a6b8-746a-b3fa-cb480e167a31" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_FinancingReceivableExtensionTerm_019d66e0-a6b8-72c2-98ab-a888d9a4cad6" xlink:href="vici-20260331.xsd#vici_FinancingReceivableExtensionTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019d66e0-a6b8-7d5e-bb07-0a490a706ed2" xlink:to="loc_vici_FinancingReceivableExtensionTerm_019d66e0-a6b8-72c2-98ab-a888d9a4cad6" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_FinancingReceivableInitialFunding_019daf35-6377-70d1-a7ab-93d40c568461" xlink:href="vici-20260331.xsd#vici_FinancingReceivableInitialFunding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019d66e0-a6b8-7d5e-bb07-0a490a706ed2" xlink:to="loc_vici_FinancingReceivableInitialFunding_019daf35-6377-70d1-a7ab-93d40c568461" xlink:type="arc" order="8"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://viciproperties.com/role/RealEstateTransactionsGoldenEntertainmentTransactionDetails" xlink:type="simple" xlink:href="vici-20260331.xsd#RealEstateTransactionsGoldenEntertainmentTransactionDetails"/>
  <link:definitionLink xlink:role="http://viciproperties.com/role/RealEstateTransactionsGoldenEntertainmentTransactionDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionLineItems_019d66e1-f073-77ad-b873-4ee8effc48d7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetAcquisitionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionTable_019d66e1-f073-7f8a-b75f-6674b956d233" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetAcquisitionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019d66e1-f073-77ad-b873-4ee8effc48d7" xlink:to="loc_us-gaap_AssetAcquisitionTable_019d66e1-f073-7f8a-b75f-6674b956d233" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionAxis_019d66e1-f073-7865-ada8-9adce6bed838" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetAcquisitionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_AssetAcquisitionTable_019d66e1-f073-7f8a-b75f-6674b956d233" xlink:to="loc_us-gaap_AssetAcquisitionAxis_019d66e1-f073-7865-ada8-9adce6bed838" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionDomain_019d66e1-f073-7865-ada8-9adce6bed838_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetAcquisitionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AssetAcquisitionAxis_019d66e1-f073-7865-ada8-9adce6bed838" xlink:to="loc_us-gaap_AssetAcquisitionDomain_019d66e1-f073-7865-ada8-9adce6bed838_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionDomain_019d66e1-f073-7500-a5de-c5bb5c6ef4d7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetAcquisitionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AssetAcquisitionAxis_019d66e1-f073-7865-ada8-9adce6bed838" xlink:to="loc_us-gaap_AssetAcquisitionDomain_019d66e1-f073-7500-a5de-c5bb5c6ef4d7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_GoldenEntertainmentTransactionMember_019d66e1-f073-7fb9-bcee-6a05ded1b2fe" xlink:href="vici-20260331.xsd#vici_GoldenEntertainmentTransactionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionDomain_019d66e1-f073-7500-a5de-c5bb5c6ef4d7" xlink:to="loc_vici_GoldenEntertainmentTransactionMember_019d66e1-f073-7fb9-bcee-6a05ded1b2fe" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_019d66e1-f073-71e1-a59b-501d7ec041c0" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_AssetAcquisitionTable_019d66e1-f073-7f8a-b75f-6674b956d233" xlink:to="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_019d66e1-f073-71e1-a59b-501d7ec041c0" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_019d66e1-f073-71e1-a59b-501d7ec041c0_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_019d66e1-f073-71e1-a59b-501d7ec041c0" xlink:to="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_019d66e1-f073-71e1-a59b-501d7ec041c0_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_019d66e1-f073-74ef-ac09-e9aa4cc36eff" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_019d66e1-f073-71e1-a59b-501d7ec041c0" xlink:to="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_019d66e1-f073-74ef-ac09-e9aa4cc36eff" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_GoldenMasterLeaseMember_019d66e1-f073-7591-8461-d690eb659751" xlink:href="vici-20260331.xsd#vici_GoldenMasterLeaseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_019d66e1-f073-74ef-ac09-e9aa4cc36eff" xlink:to="loc_vici_GoldenMasterLeaseMember_019d66e1-f073-7591-8461-d690eb659751" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019d66e1-f073-7b7e-871f-8868b1ff6a27" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_AssetAcquisitionTable_019d66e1-f073-7f8a-b75f-6674b956d233" xlink:to="loc_dei_LegalEntityAxis_019d66e1-f073-7b7e-871f-8868b1ff6a27" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d66e1-f073-7b7e-871f-8868b1ff6a27_default" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019d66e1-f073-7b7e-871f-8868b1ff6a27" xlink:to="loc_dei_EntityDomain_019d66e1-f073-7b7e-871f-8868b1ff6a27_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d66e1-f073-7fc0-85b5-33d5b987a7d5" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019d66e1-f073-7b7e-871f-8868b1ff6a27" xlink:to="loc_dei_EntityDomain_019d66e1-f073-7fc0-85b5-33d5b987a7d5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_GoldenEntertainmentInc.GoldenShareholdersMember_019d66e1-f073-7a28-b70d-33cb0da2a431" xlink:href="vici-20260331.xsd#vici_GoldenEntertainmentInc.GoldenShareholdersMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019d66e1-f073-7fc0-85b5-33d5b987a7d5" xlink:to="loc_vici_GoldenEntertainmentInc.GoldenShareholdersMember_019d66e1-f073-7a28-b70d-33cb0da2a431" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_AssetAcquisitionPercentageAcquired_019d66e1-f073-7458-a573-8fad58254772" xlink:href="vici-20260331.xsd#vici_AssetAcquisitionPercentageAcquired"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019d66e1-f073-77ad-b873-4ee8effc48d7" xlink:to="loc_vici_AssetAcquisitionPercentageAcquired_019d66e1-f073-7458-a573-8fad58254772" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_NumberOfAssetsAcquired_019d66e1-f073-7c5b-a911-1625c5406758" xlink:href="vici-20260331.xsd#vici_NumberOfAssetsAcquired"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019d66e1-f073-77ad-b873-4ee8effc48d7" xlink:to="loc_vici_NumberOfAssetsAcquired_019d66e1-f073-7c5b-a911-1625c5406758" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionConsiderationTransferred_019d66e1-f073-7cb4-b8d2-46cb4cafee6b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetAcquisitionConsiderationTransferred"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019d66e1-f073-77ad-b873-4ee8effc48d7" xlink:to="loc_us-gaap_AssetAcquisitionConsiderationTransferred_019d66e1-f073-7cb4-b8d2-46cb4cafee6b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_ContractualAnnualRentAmounts_019d66e1-f073-7b8a-9c0b-b90a2f94ae13" xlink:href="vici-20260331.xsd#vici_ContractualAnnualRentAmounts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019d66e1-f073-77ad-b873-4ee8effc48d7" xlink:to="loc_vici_ContractualAnnualRentAmounts_019d66e1-f073-7b8a-9c0b-b90a2f94ae13" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LessorSalesTypeLeaseTermOfContract1_019d66e1-f073-749a-b028-80250c2b8186" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LessorSalesTypeLeaseTermOfContract1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019d66e1-f073-77ad-b873-4ee8effc48d7" xlink:to="loc_us-gaap_LessorSalesTypeLeaseTermOfContract1_019d66e1-f073-749a-b028-80250c2b8186" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LessorLeasingArrangementsSalesTypeLeasesNumberOfRenewalOptions_019d6fed-f6d3-76e3-83c5-9924b53cec30" xlink:href="vici-20260331.xsd#vici_LessorLeasingArrangementsSalesTypeLeasesNumberOfRenewalOptions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019d66e1-f073-77ad-b873-4ee8effc48d7" xlink:to="loc_vici_LessorLeasingArrangementsSalesTypeLeasesNumberOfRenewalOptions_019d6fed-f6d3-76e3-83c5-9924b53cec30" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LessorSalesTypeLeaseRenewalTerm1_019d6ff0-0701-74ed-9309-3932f53a93ef" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LessorSalesTypeLeaseRenewalTerm1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019d66e1-f073-77ad-b873-4ee8effc48d7" xlink:to="loc_us-gaap_LessorSalesTypeLeaseRenewalTerm1_019d6ff0-0701-74ed-9309-3932f53a93ef" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_AnnualEscalationRatePercent_019d66e1-f073-7fc0-a02a-ffa886547e32" xlink:href="vici-20260331.xsd#vici_AnnualEscalationRatePercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019d66e1-f073-77ad-b873-4ee8effc48d7" xlink:to="loc_vici_AnnualEscalationRatePercent_019d66e1-f073-7fc0-a02a-ffa886547e32" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_AssetAcquisitionSharesOfNewlyIssuedStockInExchangeForOutstandingShares_019d66e1-f073-7e7b-9e86-2ce50ef8f0d9" xlink:href="vici-20260331.xsd#vici_AssetAcquisitionSharesOfNewlyIssuedStockInExchangeForOutstandingShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019d66e1-f073-77ad-b873-4ee8effc48d7" xlink:to="loc_vici_AssetAcquisitionSharesOfNewlyIssuedStockInExchangeForOutstandingShares_019d66e1-f073-7e7b-9e86-2ce50ef8f0d9" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_AssetAcquisitionExchangeRatio_019d66e1-f073-7cca-8f81-817aa679519c" xlink:href="vici-20260331.xsd#vici_AssetAcquisitionExchangeRatio"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019d66e1-f073-77ad-b873-4ee8effc48d7" xlink:to="loc_vici_AssetAcquisitionExchangeRatio_019d66e1-f073-7cca-8f81-817aa679519c" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_AssetAcquisitionPeriodOfVolumeOfWeightedAveragePrice_019d66e1-f073-7e00-aee3-aeb5cd7dbae1" xlink:href="vici-20260331.xsd#vici_AssetAcquisitionPeriodOfVolumeOfWeightedAveragePrice"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019d66e1-f073-77ad-b873-4ee8effc48d7" xlink:to="loc_vici_AssetAcquisitionPeriodOfVolumeOfWeightedAveragePrice_019d66e1-f073-7e00-aee3-aeb5cd7dbae1" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_AssetAcquisitionDebtAssumedAndRetired_019d66e1-f073-7e32-8755-ab0a23b2aa7c" xlink:href="vici-20260331.xsd#vici_AssetAcquisitionDebtAssumedAndRetired"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019d66e1-f073-77ad-b873-4ee8effc48d7" xlink:to="loc_vici_AssetAcquisitionDebtAssumedAndRetired_019d66e1-f073-7e32-8755-ab0a23b2aa7c" xlink:type="arc" order="11"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://viciproperties.com/role/RealEstatePortfolioNarrativeDetails" xlink:type="simple" xlink:href="vici-20260331.xsd#RealEstatePortfolioNarrativeDetails"/>
  <link:definitionLink xlink:role="http://viciproperties.com/role/RealEstatePortfolioNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RealEstateLineItems_019caf84-9631-7d58-92a8-66883c59990b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RealEstateLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RealEstateTable_019caf84-9631-79c7-ae2b-869fd463bf88" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RealEstateTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RealEstateLineItems_019caf84-9631-7d58-92a8-66883c59990b" xlink:to="loc_us-gaap_RealEstateTable_019caf84-9631-79c7-ae2b-869fd463bf88" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019caf84-9631-748e-98aa-c7e80868fce4" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_RealEstateTable_019caf84-9631-79c7-ae2b-869fd463bf88" xlink:to="loc_srt_RangeAxis_019caf84-9631-748e-98aa-c7e80868fce4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019caf84-9631-748e-98aa-c7e80868fce4_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_019caf84-9631-748e-98aa-c7e80868fce4" xlink:to="loc_srt_RangeMember_019caf84-9631-748e-98aa-c7e80868fce4_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019caf84-9631-77d5-8e38-0c8f3f4cebda" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_019caf84-9631-748e-98aa-c7e80868fce4" xlink:to="loc_srt_RangeMember_019caf84-9631-77d5-8e38-0c8f3f4cebda" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_019caf84-9631-7ecb-a9ab-f03050286e9c" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019caf84-9631-77d5-8e38-0c8f3f4cebda" xlink:to="loc_srt_MinimumMember_019caf84-9631-7ecb-a9ab-f03050286e9c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019caf84-9631-7dd6-aedd-e346db46c421" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019caf84-9631-77d5-8e38-0c8f3f4cebda" xlink:to="loc_srt_MaximumMember_019caf84-9631-7dd6-aedd-e346db46c421" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_SalesTypeLeaseNumberOfCasinos_019caf84-9631-7afe-a59b-de410820021f" xlink:href="vici-20260331.xsd#vici_SalesTypeLeaseNumberOfCasinos"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateLineItems_019caf84-9631-7d58-92a8-66883c59990b" xlink:to="loc_vici_SalesTypeLeaseNumberOfCasinos_019caf84-9631-7afe-a59b-de410820021f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_SalesTypeLeaseNumberOfLeaseArrangements_019caf84-9631-7999-b06c-b644c463c9a6" xlink:href="vici-20260331.xsd#vici_SalesTypeLeaseNumberOfLeaseArrangements"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateLineItems_019caf84-9631-7d58-92a8-66883c59990b" xlink:to="loc_vici_SalesTypeLeaseNumberOfLeaseArrangements_019caf84-9631-7999-b06c-b644c463c9a6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_FinancingReceivableInvestmentInLeaseNumberOfCasinos_019caf84-9631-7643-b3b3-24e41c54e4cf" xlink:href="vici-20260331.xsd#vici_FinancingReceivableInvestmentInLeaseNumberOfCasinos"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateLineItems_019caf84-9631-7d58-92a8-66883c59990b" xlink:to="loc_vici_FinancingReceivableInvestmentInLeaseNumberOfCasinos_019caf84-9631-7643-b3b3-24e41c54e4cf" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_FinancingReceivableInvestmentInLeaseNumberOfOtherExperientialProperties_019caf84-9631-73a6-bf73-d46cbe906365" xlink:href="vici-20260331.xsd#vici_FinancingReceivableInvestmentInLeaseNumberOfOtherExperientialProperties"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateLineItems_019caf84-9631-7d58-92a8-66883c59990b" xlink:to="loc_vici_FinancingReceivableInvestmentInLeaseNumberOfOtherExperientialProperties_019caf84-9631-73a6-bf73-d46cbe906365" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_FinancingReceivableInvestmentInLeaseNumberOfLeaseArrangements_019caf84-9631-7c84-bb1d-96e236d10b7d" xlink:href="vici-20260331.xsd#vici_FinancingReceivableInvestmentInLeaseNumberOfLeaseArrangements"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateLineItems_019caf84-9631-7d58-92a8-66883c59990b" xlink:to="loc_vici_FinancingReceivableInvestmentInLeaseNumberOfLeaseArrangements_019caf84-9631-7c84-bb1d-96e236d10b7d" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_FinancingReceivableInvestmentInLoansNumberOfLoansAndSecurities_019caf84-9631-70d6-9a9a-1b8bcf3cfa74" xlink:href="vici-20260331.xsd#vici_FinancingReceivableInvestmentInLoansNumberOfLoansAndSecurities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateLineItems_019caf84-9631-7d58-92a8-66883c59990b" xlink:to="loc_vici_FinancingReceivableInvestmentInLoansNumberOfLoansAndSecurities_019caf84-9631-70d6-9a9a-1b8bcf3cfa74" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LeaseArrangementNumberOfProperties_019caf84-9631-74ad-9d49-16bc5afd33a8" xlink:href="vici-20260331.xsd#vici_LeaseArrangementNumberOfProperties"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateLineItems_019caf84-9631-7d58-92a8-66883c59990b" xlink:to="loc_vici_LeaseArrangementNumberOfProperties_019caf84-9631-74ad-9d49-16bc5afd33a8" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LeaseArrangementNumberOfLeaseAgreement_019caf84-9631-7b7e-958c-acad16978c99" xlink:href="vici-20260331.xsd#vici_LeaseArrangementNumberOfLeaseAgreement"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateLineItems_019caf84-9631-7d58-92a8-66883c59990b" xlink:to="loc_vici_LeaseArrangementNumberOfLeaseAgreement_019caf84-9631-7b7e-958c-acad16978c99" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LessorSalesTypeAndFinancingReceivableLeaseInitialTermOfContract_019caf84-9631-7823-bec1-cc9581c3ca12" xlink:href="vici-20260331.xsd#vici_LessorSalesTypeAndFinancingReceivableLeaseInitialTermOfContract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateLineItems_019caf84-9631-7d58-92a8-66883c59990b" xlink:to="loc_vici_LessorSalesTypeAndFinancingReceivableLeaseInitialTermOfContract_019caf84-9631-7823-bec1-cc9581c3ca12" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LessorSalesTypeLeaseRenewalTerm1_019caf84-9631-7320-a8d3-c783b466f4b1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LessorSalesTypeLeaseRenewalTerm1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateLineItems_019caf84-9631-7d58-92a8-66883c59990b" xlink:to="loc_us-gaap_LessorSalesTypeLeaseRenewalTerm1_019caf84-9631-7320-a8d3-c783b466f4b1" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LessorWeightedAverageLeaseTermBasedOnContractualRentIncludingExtensionOptions_019caf84-9631-7f5a-a8a0-bd9b0f298eea" xlink:href="vici-20260331.xsd#vici_LessorWeightedAverageLeaseTermBasedOnContractualRentIncludingExtensionOptions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateLineItems_019caf84-9631-7d58-92a8-66883c59990b" xlink:to="loc_vici_LessorWeightedAverageLeaseTermBasedOnContractualRentIncludingExtensionOptions_019caf84-9631-7f5a-a8a0-bd9b0f298eea" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LeaseArrangementAnnualEscalationRate_019caf84-9631-76b0-9479-149b365fbda5" xlink:href="vici-20260331.xsd#vici_LeaseArrangementAnnualEscalationRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateLineItems_019caf84-9631-7d58-92a8-66883c59990b" xlink:to="loc_vici_LeaseArrangementAnnualEscalationRate_019caf84-9631-76b0-9479-149b365fbda5" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LeaseArrangementPercentageOfVariableRentSplit_019caf84-9631-74dc-83ef-68f7a77f289b" xlink:href="vici-20260331.xsd#vici_LeaseArrangementPercentageOfVariableRentSplit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateLineItems_019caf84-9631-7d58-92a8-66883c59990b" xlink:to="loc_vici_LeaseArrangementPercentageOfVariableRentSplit_019caf84-9631-74dc-83ef-68f7a77f289b" xlink:type="arc" order="12"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://viciproperties.com/role/RealEstatePortfolioScheduleRealEstatePortfolioDetails" xlink:type="simple" xlink:href="vici-20260331.xsd#RealEstatePortfolioScheduleRealEstatePortfolioDetails"/>
  <link:definitionLink xlink:role="http://viciproperties.com/role/RealEstatePortfolioScheduleRealEstatePortfolioDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_019caf84-9631-7c5f-a362-dde58df10dbb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsNotesAndLoansReceivableLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_019caf84-9631-7089-8b73-3a42499775c3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_019caf84-9631-7c5f-a362-dde58df10dbb" xlink:to="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_019caf84-9631-7089-8b73-3a42499775c3" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019caf84-9631-76d9-82da-6514a888e969" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_019caf84-9631-7089-8b73-3a42499775c3" xlink:to="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019caf84-9631-76d9-82da-6514a888e969" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivableTypeDomain_019caf84-9631-76d9-82da-6514a888e969_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ReceivableTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019caf84-9631-76d9-82da-6514a888e969" xlink:to="loc_us-gaap_ReceivableTypeDomain_019caf84-9631-76d9-82da-6514a888e969_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivableTypeDomain_019caf84-9631-7c8f-b995-019eb0578971" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ReceivableTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019caf84-9631-76d9-82da-6514a888e969" xlink:to="loc_us-gaap_ReceivableTypeDomain_019caf84-9631-7c8f-b995-019eb0578971" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceReceivablesMember_019caf84-9631-7881-b5f0-a4204441f53a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceReceivablesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReceivableTypeDomain_019caf84-9631-7c8f-b995-019eb0578971" xlink:to="loc_us-gaap_FinanceReceivablesMember_019caf84-9631-7881-b5f0-a4204441f53a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LoansReceivableAndSecuritiesMember_019caf84-9631-7e40-b1ea-2d6da8415f71" xlink:href="vici-20260331.xsd#vici_LoansReceivableAndSecuritiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReceivableTypeDomain_019caf84-9631-7c8f-b995-019eb0578971" xlink:to="loc_vici_LoansReceivableAndSecuritiesMember_019caf84-9631-7e40-b1ea-2d6da8415f71" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetInvestmentInLeaseExcludingAccruedInterestAfterAllowanceForCreditLoss_019caf84-9631-7053-9e93-f5b3cdbf84ae" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetInvestmentInLeaseExcludingAccruedInterestAfterAllowanceForCreditLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_019caf84-9631-7c5f-a362-dde58df10dbb" xlink:to="loc_us-gaap_NetInvestmentInLeaseExcludingAccruedInterestAfterAllowanceForCreditLoss_019caf84-9631-7053-9e93-f5b3cdbf84ae" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss_019caf84-9631-7baa-9e87-2315f027cd5a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_019caf84-9631-7c5f-a362-dde58df10dbb" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss_019caf84-9631-7baa-9e87-2315f027cd5a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_FinancingReceivablesOperatingLeasesNetInvestmentInLeaseBeforeInvestmentInLoans_019caf84-9631-72ef-866e-89a2594da075" xlink:href="vici-20260331.xsd#vici_FinancingReceivablesOperatingLeasesNetInvestmentInLeaseBeforeInvestmentInLoans"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_019caf84-9631-7c5f-a362-dde58df10dbb" xlink:to="loc_vici_FinancingReceivablesOperatingLeasesNetInvestmentInLeaseBeforeInvestmentInLoans_019caf84-9631-72ef-866e-89a2594da075" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LandAvailableForDevelopment_019caf84-9631-7b50-b90b-3ba72eccd2d9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LandAvailableForDevelopment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_019caf84-9631-7c5f-a362-dde58df10dbb" xlink:to="loc_us-gaap_LandAvailableForDevelopment_019caf84-9631-7b50-b90b-3ba72eccd2d9" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RealEstateInvestments_019caf84-9631-760d-a36d-c0dca106bfbe" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RealEstateInvestments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_019caf84-9631-7c5f-a362-dde58df10dbb" xlink:to="loc_us-gaap_RealEstateInvestments_019caf84-9631-760d-a36d-c0dca106bfbe" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://viciproperties.com/role/RealEstatePortfolioScheduleofComponentsofDirectFinancingandOperatingLeasesDetails" xlink:type="simple" xlink:href="vici-20260331.xsd#RealEstatePortfolioScheduleofComponentsofDirectFinancingandOperatingLeasesDetails"/>
  <link:definitionLink xlink:role="http://viciproperties.com/role/RealEstatePortfolioScheduleofComponentsofDirectFinancingandOperatingLeasesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RealEstateLineItems_019caf84-9631-7887-a64b-473226404121" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RealEstateLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RealEstateTable_019caf84-9631-755e-91ed-ef545ef458e6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RealEstateTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RealEstateLineItems_019caf84-9631-7887-a64b-473226404121" xlink:to="loc_us-gaap_RealEstateTable_019caf84-9631-755e-91ed-ef545ef458e6" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_RentTypeAxis_019caf84-9631-7ea3-bb31-74ee924ed604" xlink:href="vici-20260331.xsd#vici_RentTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_RealEstateTable_019caf84-9631-755e-91ed-ef545ef458e6" xlink:to="loc_vici_RentTypeAxis_019caf84-9631-7ea3-bb31-74ee924ed604" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_RentTypeDomain_019caf84-9631-7ea3-bb31-74ee924ed604_default" xlink:href="vici-20260331.xsd#vici_RentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_vici_RentTypeAxis_019caf84-9631-7ea3-bb31-74ee924ed604" xlink:to="loc_vici_RentTypeDomain_019caf84-9631-7ea3-bb31-74ee924ed604_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_RentTypeDomain_019caf84-9631-7eff-b818-0a6e52d2d5b8" xlink:href="vici-20260331.xsd#vici_RentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_vici_RentTypeAxis_019caf84-9631-7ea3-bb31-74ee924ed604" xlink:to="loc_vici_RentTypeDomain_019caf84-9631-7eff-b818-0a6e52d2d5b8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_FixedRentMember_019caf84-9631-7777-8842-f2aa2bb217ac" xlink:href="vici-20260331.xsd#vici_FixedRentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_vici_RentTypeDomain_019caf84-9631-7eff-b818-0a6e52d2d5b8" xlink:to="loc_vici_FixedRentMember_019caf84-9631-7777-8842-f2aa2bb217ac" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_ContingentRentMember_019caf84-9631-7636-b83b-4580fc39d371" xlink:href="vici-20260331.xsd#vici_ContingentRentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_vici_RentTypeDomain_019caf84-9631-7eff-b818-0a6e52d2d5b8" xlink:to="loc_vici_ContingentRentMember_019caf84-9631-7636-b83b-4580fc39d371" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesTypeLeaseInterestIncome_019caf84-9631-74c6-9985-ca598d62ca14" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SalesTypeLeaseInterestIncome"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateLineItems_019caf84-9631-7887-a64b-473226404121" xlink:to="loc_us-gaap_SalesTypeLeaseInterestIncome_019caf84-9631-74c6-9985-ca598d62ca14" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_FinancingLeaseReceivableInterestIncome_019caf84-9631-77b4-a88a-a22d26e351d6" xlink:href="vici-20260331.xsd#vici_FinancingLeaseReceivableInterestIncome"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateLineItems_019caf84-9631-7887-a64b-473226404121" xlink:to="loc_vici_FinancingLeaseReceivableInterestIncome_019caf84-9631-77b4-a88a-a22d26e351d6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_TotalLeaseRevenueIncludingContingentRent_019caf84-9631-75ea-8693-ac5ea624b7a8" xlink:href="vici-20260331.xsd#vici_TotalLeaseRevenueIncludingContingentRent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateLineItems_019caf84-9631-7887-a64b-473226404121" xlink:to="loc_vici_TotalLeaseRevenueIncludingContingentRent_019caf84-9631-75ea-8693-ac5ea624b7a8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_SalesTypeAndLeaseFinancingReceivableAdjustment_019caf84-9631-7224-987e-c48a461d669a" xlink:href="vici-20260331.xsd#vici_SalesTypeAndLeaseFinancingReceivableAdjustment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateLineItems_019caf84-9631-7887-a64b-473226404121" xlink:to="loc_vici_SalesTypeAndLeaseFinancingReceivableAdjustment_019caf84-9631-7224-987e-c48a461d669a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_ContractualLeasingRevenue_019caf84-9631-7206-a8fc-b14b36623f15" xlink:href="vici-20260331.xsd#vici_ContractualLeasingRevenue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateLineItems_019caf84-9631-7887-a64b-473226404121" xlink:to="loc_vici_ContractualLeasingRevenue_019caf84-9631-7206-a8fc-b14b36623f15" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://viciproperties.com/role/RealEstatePortfolioScheduleofLeaseAgreementDetails" xlink:type="simple" xlink:href="vici-20260331.xsd#RealEstatePortfolioScheduleofLeaseAgreementDetails"/>
  <link:definitionLink xlink:role="http://viciproperties.com/role/RealEstatePortfolioScheduleofLeaseAgreementDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RealEstateLineItems_019caf84-9631-7596-a263-3d1a44e1a0c6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RealEstateLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RealEstateTable_019caf84-9631-76eb-a1fe-d0b001fcf730" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RealEstateTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RealEstateLineItems_019caf84-9631-7596-a263-3d1a44e1a0c6" xlink:to="loc_us-gaap_RealEstateTable_019caf84-9631-76eb-a1fe-d0b001fcf730" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_019caf84-9631-7760-ac67-383930b5a531" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_RealEstateTable_019caf84-9631-76eb-a1fe-d0b001fcf730" xlink:to="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_019caf84-9631-7760-ac67-383930b5a531" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_019caf84-9631-7760-ac67-383930b5a531_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_019caf84-9631-7760-ac67-383930b5a531" xlink:to="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_019caf84-9631-7760-ac67-383930b5a531_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_019caf84-9631-76ec-8319-20a01750082a" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_019caf84-9631-7760-ac67-383930b5a531" xlink:to="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_019caf84-9631-76ec-8319-20a01750082a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_MGMMasterLeasePropertiesMember_019caf84-9631-7fbc-8337-96881461fea8" xlink:href="vici-20260331.xsd#vici_MGMMasterLeasePropertiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_019caf84-9631-76ec-8319-20a01750082a" xlink:to="loc_vici_MGMMasterLeasePropertiesMember_019caf84-9631-7fbc-8337-96881461fea8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_CaesarsLeaseAgreementsMember_019caf84-9631-7f50-b142-1cf6cf7b5891" xlink:href="vici-20260331.xsd#vici_CaesarsLeaseAgreementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_019caf84-9631-76ec-8319-20a01750082a" xlink:to="loc_vici_CaesarsLeaseAgreementsMember_019caf84-9631-7f50-b142-1cf6cf7b5891" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_CaesarsRegionalMasterLeaseAndCaesarsJolietLeasePropertiesMember_019cd216-ca58-7131-83fe-7500afc17d40" xlink:href="vici-20260331.xsd#vici_CaesarsRegionalMasterLeaseAndCaesarsJolietLeasePropertiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_vici_CaesarsLeaseAgreementsMember_019caf84-9631-7f50-b142-1cf6cf7b5891" xlink:to="loc_vici_CaesarsRegionalMasterLeaseAndCaesarsJolietLeasePropertiesMember_019cd216-ca58-7131-83fe-7500afc17d40" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_CaesarsLasVegasMasterLeasePropertiesMember_019caf84-9631-7650-87b5-ae91c089c956" xlink:href="vici-20260331.xsd#vici_CaesarsLasVegasMasterLeasePropertiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_vici_CaesarsLeaseAgreementsMember_019caf84-9631-7f50-b142-1cf6cf7b5891" xlink:to="loc_vici_CaesarsLasVegasMasterLeasePropertiesMember_019caf84-9631-7650-87b5-ae91c089c956" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_MGMGrandMandalayBayLeaseAgreementPropertiesMember_019caf84-9631-7e1e-9c02-ffd5f649292c" xlink:href="vici-20260331.xsd#vici_MGMGrandMandalayBayLeaseAgreementPropertiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_019caf84-9631-76ec-8319-20a01750082a" xlink:to="loc_vici_MGMGrandMandalayBayLeaseAgreementPropertiesMember_019caf84-9631-7e1e-9c02-ffd5f649292c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_NorthfieldParkLeaseMember_019dc21a-ac5a-793b-bd1e-1798c810d054" xlink:href="vici-20260331.xsd#vici_NorthfieldParkLeaseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_019caf84-9631-76ec-8319-20a01750082a" xlink:to="loc_vici_NorthfieldParkLeaseMember_019dc21a-ac5a-793b-bd1e-1798c810d054" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019caf84-9631-778a-a161-6fd530caf450" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_RealEstateTable_019caf84-9631-76eb-a1fe-d0b001fcf730" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019caf84-9631-778a-a161-6fd530caf450" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019caf84-9631-778a-a161-6fd530caf450_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019caf84-9631-778a-a161-6fd530caf450" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019caf84-9631-778a-a161-6fd530caf450_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019caf84-9631-7d89-8385-93347cd112c2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019caf84-9631-778a-a161-6fd530caf450" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019caf84-9631-7d89-8385-93347cd112c2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_MGMMasterLeaseMember_019caf84-9631-73b7-bff7-c1c4bd95519f" xlink:href="vici-20260331.xsd#vici_MGMMasterLeaseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019caf84-9631-7d89-8385-93347cd112c2" xlink:to="loc_vici_MGMMasterLeaseMember_019caf84-9631-73b7-bff7-c1c4bd95519f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_CaesarsRegionalMasterLeaseAndCaesarsJolietLeaseMember_019cd1ef-579b-7d34-9b97-6e91e3940973" xlink:href="vici-20260331.xsd#vici_CaesarsRegionalMasterLeaseAndCaesarsJolietLeaseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019caf84-9631-7d89-8385-93347cd112c2" xlink:to="loc_vici_CaesarsRegionalMasterLeaseAndCaesarsJolietLeaseMember_019cd1ef-579b-7d34-9b97-6e91e3940973" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_CaesarsLasVegasMasterLeaseMember_019caf84-9631-778b-96fa-956c87d01654" xlink:href="vici-20260331.xsd#vici_CaesarsLasVegasMasterLeaseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019caf84-9631-7d89-8385-93347cd112c2" xlink:to="loc_vici_CaesarsLasVegasMasterLeaseMember_019caf84-9631-778b-96fa-956c87d01654" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_MGMGrandMandalayBayLeaseMember_019caf84-9631-7575-9fa4-b82d38b1d49a" xlink:href="vici-20260331.xsd#vici_MGMGrandMandalayBayLeaseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019caf84-9631-7d89-8385-93347cd112c2" xlink:to="loc_vici_MGMGrandMandalayBayLeaseMember_019caf84-9631-7575-9fa4-b82d38b1d49a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LeaseYearAxis_019caf84-9631-7797-bf8a-ddd9daf3c963" xlink:href="vici-20260331.xsd#vici_LeaseYearAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_RealEstateTable_019caf84-9631-76eb-a1fe-d0b001fcf730" xlink:to="loc_vici_LeaseYearAxis_019caf84-9631-7797-bf8a-ddd9daf3c963" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LeaseYearDomain_019caf84-9631-7797-bf8a-ddd9daf3c963_default" xlink:href="vici-20260331.xsd#vici_LeaseYearDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_vici_LeaseYearAxis_019caf84-9631-7797-bf8a-ddd9daf3c963" xlink:to="loc_vici_LeaseYearDomain_019caf84-9631-7797-bf8a-ddd9daf3c963_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LeaseYearDomain_019caf84-9631-7c9c-acfb-c2ba94c6b575" xlink:href="vici-20260331.xsd#vici_LeaseYearDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_vici_LeaseYearAxis_019caf84-9631-7797-bf8a-ddd9daf3c963" xlink:to="loc_vici_LeaseYearDomain_019caf84-9631-7c9c-acfb-c2ba94c6b575" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LeaseYears2Through10Member_019caf84-9631-7bcf-a46b-59d9d5e7f10d" xlink:href="vici-20260331.xsd#vici_LeaseYears2Through10Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_vici_LeaseYearDomain_019caf84-9631-7c9c-acfb-c2ba94c6b575" xlink:to="loc_vici_LeaseYears2Through10Member_019caf84-9631-7bcf-a46b-59d9d5e7f10d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LeaseYears11Through25Member_019caf84-9631-75a9-b3f8-9be48c219500" xlink:href="vici-20260331.xsd#vici_LeaseYears11Through25Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_vici_LeaseYearDomain_019caf84-9631-7c9c-acfb-c2ba94c6b575" xlink:to="loc_vici_LeaseYears11Through25Member_019caf84-9631-75a9-b3f8-9be48c219500" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LeaseYears11Through16Member_019caf84-9631-7987-b9a2-bae85b4bd0c7" xlink:href="vici-20260331.xsd#vici_LeaseYears11Through16Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_vici_LeaseYearDomain_019caf84-9631-7c9c-acfb-c2ba94c6b575" xlink:to="loc_vici_LeaseYears11Through16Member_019caf84-9631-7987-b9a2-bae85b4bd0c7" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LeaseYears2Through15Member_019caf84-9631-7e50-b5f5-ee4c88376924" xlink:href="vici-20260331.xsd#vici_LeaseYears2Through15Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_vici_LeaseYearDomain_019caf84-9631-7c9c-acfb-c2ba94c6b575" xlink:to="loc_vici_LeaseYears2Through15Member_019caf84-9631-7e50-b5f5-ee4c88376924" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LeaseYears16Through30Member_019caf84-9631-740b-bcf1-60b0bc44abaf" xlink:href="vici-20260331.xsd#vici_LeaseYears16Through30Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_vici_LeaseYearDomain_019caf84-9631-7c9c-acfb-c2ba94c6b575" xlink:to="loc_vici_LeaseYears16Through30Member_019caf84-9631-740b-bcf1-60b0bc44abaf" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019caf84-9631-7784-b20e-a2db1493e063" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_RealEstateTable_019caf84-9631-76eb-a1fe-d0b001fcf730" xlink:to="loc_srt_RangeAxis_019caf84-9631-7784-b20e-a2db1493e063" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019caf84-9631-7784-b20e-a2db1493e063_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_019caf84-9631-7784-b20e-a2db1493e063" xlink:to="loc_srt_RangeMember_019caf84-9631-7784-b20e-a2db1493e063_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019caf84-9631-7899-a431-49d8ca34964d" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_019caf84-9631-7784-b20e-a2db1493e063" xlink:to="loc_srt_RangeMember_019caf84-9631-7899-a431-49d8ca34964d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_019caf84-9631-7390-8f59-ca755a12b579" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019caf84-9631-7899-a431-49d8ca34964d" xlink:to="loc_srt_MinimumMember_019caf84-9631-7390-8f59-ca755a12b579" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019caf84-9631-78b5-9e2b-d7be3eb7d18a" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019caf84-9631-7899-a431-49d8ca34964d" xlink:to="loc_srt_MaximumMember_019caf84-9631-78b5-9e2b-d7be3eb7d18a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateAxis_019caf84-9631-79e7-80af-0715ef1d8068" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_VariableRateAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_RealEstateTable_019caf84-9631-76eb-a1fe-d0b001fcf730" xlink:to="loc_us-gaap_VariableRateAxis_019caf84-9631-79e7-80af-0715ef1d8068" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateDomain_019caf84-9631-79e7-80af-0715ef1d8068_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_VariableRateDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_VariableRateAxis_019caf84-9631-79e7-80af-0715ef1d8068" xlink:to="loc_us-gaap_VariableRateDomain_019caf84-9631-79e7-80af-0715ef1d8068_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateDomain_019caf84-9631-7603-bc3e-52a1d7f56171" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_VariableRateDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_VariableRateAxis_019caf84-9631-79e7-80af-0715ef1d8068" xlink:to="loc_us-gaap_VariableRateDomain_019caf84-9631-7603-bc3e-52a1d7f56171" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_BaseRentMember_019caf84-9631-731e-870a-d2d193bdd758" xlink:href="vici-20260331.xsd#vici_BaseRentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableRateDomain_019caf84-9631-7603-bc3e-52a1d7f56171" xlink:to="loc_vici_BaseRentMember_019caf84-9631-731e-870a-d2d193bdd758" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_VariableRentMember_019caf84-9631-79bb-93c8-fbb5854fa3c5" xlink:href="vici-20260331.xsd#vici_VariableRentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableRateDomain_019caf84-9631-7603-bc3e-52a1d7f56171" xlink:to="loc_vici_VariableRentMember_019caf84-9631-79bb-93c8-fbb5854fa3c5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_OwnershipAxis_019caf84-9631-7c3a-9983-7e8548236f63" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_OwnershipAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_RealEstateTable_019caf84-9631-76eb-a1fe-d0b001fcf730" xlink:to="loc_srt_OwnershipAxis_019caf84-9631-7c3a-9983-7e8548236f63" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_OwnershipDomain_019caf84-9631-7c3a-9983-7e8548236f63_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_OwnershipDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_OwnershipAxis_019caf84-9631-7c3a-9983-7e8548236f63" xlink:to="loc_srt_OwnershipDomain_019caf84-9631-7c3a-9983-7e8548236f63_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_OwnershipDomain_019caf84-9631-782d-85b1-93956c4fc118" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_OwnershipDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_OwnershipAxis_019caf84-9631-7c3a-9983-7e8548236f63" xlink:to="loc_srt_OwnershipDomain_019caf84-9631-782d-85b1-93956c4fc118" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_HarrahsJolietLandCoLLCMember_019caf84-9631-7e85-a8ef-6fd04270dcea" xlink:href="vici-20260331.xsd#vici_HarrahsJolietLandCoLLCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_OwnershipDomain_019caf84-9631-782d-85b1-93956c4fc118" xlink:to="loc_vici_HarrahsJolietLandCoLLCMember_019caf84-9631-7e85-a8ef-6fd04270dcea" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_019dc21a-ac5a-7477-bc2f-dc18c65017e1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubsequentEventTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_RealEstateTable_019caf84-9631-76eb-a1fe-d0b001fcf730" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_019dc21a-ac5a-7477-bc2f-dc18c65017e1" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_019dc21a-ac5a-7477-bc2f-dc18c65017e1_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_019dc21a-ac5a-7477-bc2f-dc18c65017e1" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_019dc21a-ac5a-7477-bc2f-dc18c65017e1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_019dc21a-ac5a-74ee-ab69-ee7027b1c8e6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_019dc21a-ac5a-7477-bc2f-dc18c65017e1" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_019dc21a-ac5a-74ee-ab69-ee7027b1c8e6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventMember_019dc21a-ac5a-7f78-b2c8-adab2cadb0e6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubsequentEventMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_019dc21a-ac5a-74ee-ab69-ee7027b1c8e6" xlink:to="loc_us-gaap_SubsequentEventMember_019dc21a-ac5a-7f78-b2c8-adab2cadb0e6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LessorSalesTypeAndFinancingReceivableLeaseInitialTermOfContract_019caf84-9631-7c9c-8d83-e4579adf072f" xlink:href="vici-20260331.xsd#vici_LessorSalesTypeAndFinancingReceivableLeaseInitialTermOfContract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateLineItems_019caf84-9631-7596-a263-3d1a44e1a0c6" xlink:to="loc_vici_LessorSalesTypeAndFinancingReceivableLeaseInitialTermOfContract_019caf84-9631-7c9c-8d83-e4579adf072f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LessorLeasingArrangementsSalestypeDirectFinancingLeaseNumberOfRenewalOptions_019caf84-9631-7c4c-bbff-05d2e3bfe4b7" xlink:href="vici-20260331.xsd#vici_LessorLeasingArrangementsSalestypeDirectFinancingLeaseNumberOfRenewalOptions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateLineItems_019caf84-9631-7596-a263-3d1a44e1a0c6" xlink:to="loc_vici_LessorLeasingArrangementsSalestypeDirectFinancingLeaseNumberOfRenewalOptions_019caf84-9631-7c4c-bbff-05d2e3bfe4b7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LessorSalesTypeLeaseRenewalTerm1_019caf84-9631-73cd-9cac-3236e3b61717" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LessorSalesTypeLeaseRenewalTerm1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateLineItems_019caf84-9631-7596-a263-3d1a44e1a0c6" xlink:to="loc_us-gaap_LessorSalesTypeLeaseRenewalTerm1_019caf84-9631-73cd-9cac-3236e3b61717" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LessorCurrentBaseRentIncludingAdjustmentForNoncontrollingInterest_019caf84-9631-7e21-98b3-ae414f12b040" xlink:href="vici-20260331.xsd#vici_LessorCurrentBaseRentIncludingAdjustmentForNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateLineItems_019caf84-9631-7596-a263-3d1a44e1a0c6" xlink:to="loc_vici_LessorCurrentBaseRentIncludingAdjustmentForNoncontrollingInterest_019caf84-9631-7e21-98b3-ae414f12b040" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_AnnualEscalationRatePercent_019caf84-9631-7ab8-8ea8-cf95adb48f35" xlink:href="vici-20260331.xsd#vici_AnnualEscalationRatePercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateLineItems_019caf84-9631-7596-a263-3d1a44e1a0c6" xlink:to="loc_vici_AnnualEscalationRatePercent_019caf84-9631-7ab8-8ea8-cf95adb48f35" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_AnnualRentIncreaseCapPercent_019caf84-9631-7327-ae50-bfa33643065a" xlink:href="vici-20260331.xsd#vici_AnnualRentIncreaseCapPercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateLineItems_019caf84-9631-7596-a263-3d1a44e1a0c6" xlink:to="loc_vici_AnnualRentIncreaseCapPercent_019caf84-9631-7327-ae50-bfa33643065a" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LeaseArrangementPercentageOfVariableRentSplit_019caf84-9631-728b-a560-84123ff9cbfa" xlink:href="vici-20260331.xsd#vici_LeaseArrangementPercentageOfVariableRentSplit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateLineItems_019caf84-9631-7596-a263-3d1a44e1a0c6" xlink:to="loc_vici_LeaseArrangementPercentageOfVariableRentSplit_019caf84-9631-728b-a560-84123ff9cbfa" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LessorLeasingArrangementsVariableRentPercentage_019caf84-9631-7389-8bb7-28071b82a305" xlink:href="vici-20260331.xsd#vici_LessorLeasingArrangementsVariableRentPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateLineItems_019caf84-9631-7596-a263-3d1a44e1a0c6" xlink:to="loc_vici_LessorLeasingArrangementsVariableRentPercentage_019caf84-9631-7389-8bb7-28071b82a305" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners_019caf84-9631-7667-9b93-e69de6de627e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateLineItems_019caf84-9631-7596-a263-3d1a44e1a0c6" xlink:to="loc_us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners_019caf84-9631-7667-9b93-e69de6de627e" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_ContractualAnnualRentAmounts_019dc21a-ac5a-7ea9-9c18-72cc4bc1aad3" xlink:href="vici-20260331.xsd#vici_ContractualAnnualRentAmounts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateLineItems_019caf84-9631-7596-a263-3d1a44e1a0c6" xlink:to="loc_vici_ContractualAnnualRentAmounts_019dc21a-ac5a-7ea9-9c18-72cc4bc1aad3" xlink:type="arc" order="9"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://viciproperties.com/role/RealEstatePortfolioScheduleofCapitalExpenditureRequirementsDetails" xlink:type="simple" xlink:href="vici-20260331.xsd#RealEstatePortfolioScheduleofCapitalExpenditureRequirementsDetails"/>
  <link:definitionLink xlink:role="http://viciproperties.com/role/RealEstatePortfolioScheduleofCapitalExpenditureRequirementsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RealEstateLineItems_019caf84-9631-730e-95ad-7fc652d38a6e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RealEstateLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RealEstateTable_019caf84-9631-7714-a0e0-67f502f03e22" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RealEstateTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RealEstateLineItems_019caf84-9631-730e-95ad-7fc652d38a6e" xlink:to="loc_us-gaap_RealEstateTable_019caf84-9631-7714-a0e0-67f502f03e22" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019caf84-9631-70ce-9b4e-ffb744cdc987" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_RealEstateTable_019caf84-9631-7714-a0e0-67f502f03e22" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019caf84-9631-70ce-9b4e-ffb744cdc987" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019caf84-9631-70ce-9b4e-ffb744cdc987_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019caf84-9631-70ce-9b4e-ffb744cdc987" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019caf84-9631-70ce-9b4e-ffb744cdc987_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019caf84-9631-7a4e-9520-7766acc882c8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019caf84-9631-70ce-9b4e-ffb744cdc987" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019caf84-9631-7a4e-9520-7766acc882c8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_CaesarsLeaseAgreementMember_019caf84-9631-7a5d-84f8-6e5b68c6fd9d" xlink:href="vici-20260331.xsd#vici_CaesarsLeaseAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019caf84-9631-7a4e-9520-7766acc882c8" xlink:to="loc_vici_CaesarsLeaseAgreementMember_019caf84-9631-7a5d-84f8-6e5b68c6fd9d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_CaesarsRegionalMasterLeaseAndCaesarsJolietLeaseMember_019cd1c1-83cf-7d8d-96ff-efc2c9310d2b" xlink:href="vici-20260331.xsd#vici_CaesarsRegionalMasterLeaseAndCaesarsJolietLeaseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_vici_CaesarsLeaseAgreementMember_019caf84-9631-7a5d-84f8-6e5b68c6fd9d" xlink:to="loc_vici_CaesarsRegionalMasterLeaseAndCaesarsJolietLeaseMember_019cd1c1-83cf-7d8d-96ff-efc2c9310d2b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_CaesarsLasVegasMasterLeaseMember_019caf84-9631-7a0e-8826-22b6ccc21a94" xlink:href="vici-20260331.xsd#vici_CaesarsLasVegasMasterLeaseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_vici_CaesarsLeaseAgreementMember_019caf84-9631-7a5d-84f8-6e5b68c6fd9d" xlink:to="loc_vici_CaesarsLasVegasMasterLeaseMember_019caf84-9631-7a0e-8826-22b6ccc21a94" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_MGMGrandMandalayBayLeaseMember_019caf84-9631-75a2-86cd-2d5221f7d19b" xlink:href="vici-20260331.xsd#vici_MGMGrandMandalayBayLeaseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019caf84-9631-7a4e-9520-7766acc882c8" xlink:to="loc_vici_MGMGrandMandalayBayLeaseMember_019caf84-9631-75a2-86cd-2d5221f7d19b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_VenetianLeaseMember_019caf84-9631-7bb9-960e-c68b0c95ee7b" xlink:href="vici-20260331.xsd#vici_VenetianLeaseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019caf84-9631-7a4e-9520-7766acc882c8" xlink:to="loc_vici_VenetianLeaseMember_019caf84-9631-7bb9-960e-c68b0c95ee7b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_AllOtherLeasesMember_019caf84-9631-7abf-afce-9767897103b1" xlink:href="vici-20260331.xsd#vici_AllOtherLeasesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019caf84-9631-7a4e-9520-7766acc882c8" xlink:to="loc_vici_AllOtherLeasesMember_019caf84-9631-7abf-afce-9767897103b1" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_PercentageOfNetRevenueOfYearlyMinimumExpenditure_019caf84-9631-74fc-9322-a4108ffb89d5" xlink:href="vici-20260331.xsd#vici_PercentageOfNetRevenueOfYearlyMinimumExpenditure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateLineItems_019caf84-9631-730e-95ad-7fc652d38a6e" xlink:to="loc_vici_PercentageOfNetRevenueOfYearlyMinimumExpenditure_019caf84-9631-74fc-9322-a4108ffb89d5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_PercentageOfMonthlyReserveOfYearlyMinimumExpenditure_019caf84-9631-7297-abc8-bba5a698f1a8" xlink:href="vici-20260331.xsd#vici_PercentageOfMonthlyReserveOfYearlyMinimumExpenditure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateLineItems_019caf84-9631-730e-95ad-7fc652d38a6e" xlink:to="loc_vici_PercentageOfMonthlyReserveOfYearlyMinimumExpenditure_019caf84-9631-7297-abc8-bba5a698f1a8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LeaseAgreementAmountRequiredToBeSpentOnMinimumCapitalExpenditures_019caf84-9631-735d-be1a-b5428c5f4428" xlink:href="vici-20260331.xsd#vici_LeaseAgreementAmountRequiredToBeSpentOnMinimumCapitalExpenditures"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateLineItems_019caf84-9631-730e-95ad-7fc652d38a6e" xlink:to="loc_vici_LeaseAgreementAmountRequiredToBeSpentOnMinimumCapitalExpenditures_019caf84-9631-735d-be1a-b5428c5f4428" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LeaseAgreementAmountOfFloorOfCapitalExpenditures_019caf84-9631-7ea2-8044-b4230948a622" xlink:href="vici-20260331.xsd#vici_LeaseAgreementAmountOfFloorOfCapitalExpenditures"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateLineItems_019caf84-9631-730e-95ad-7fc652d38a6e" xlink:to="loc_vici_LeaseAgreementAmountOfFloorOfCapitalExpenditures_019caf84-9631-7ea2-8044-b4230948a622" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_PercentageOfPriorYearNetRevenuesOfAnnualBuildingAndCapitalImprovements_019caf84-9631-73c8-9e8e-4f3ccbc9767e" xlink:href="vici-20260331.xsd#vici_PercentageOfPriorYearNetRevenuesOfAnnualBuildingAndCapitalImprovements"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateLineItems_019caf84-9631-730e-95ad-7fc652d38a6e" xlink:to="loc_vici_PercentageOfPriorYearNetRevenuesOfAnnualBuildingAndCapitalImprovements_019caf84-9631-73c8-9e8e-4f3ccbc9767e" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LeaseAgreementAmountRequiredToBeSpentOnMinimumCapitalExpendituresRegionalAssets_019cd1c1-83cf-7740-bfdd-36399ff2053c" xlink:href="vici-20260331.xsd#vici_LeaseAgreementAmountRequiredToBeSpentOnMinimumCapitalExpendituresRegionalAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateLineItems_019caf84-9631-730e-95ad-7fc652d38a6e" xlink:to="loc_vici_LeaseAgreementAmountRequiredToBeSpentOnMinimumCapitalExpendituresRegionalAssets_019cd1c1-83cf-7740-bfdd-36399ff2053c" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_RealEstateInvestmentsAdditionalCapitalExpenditureRequirementTiedToTheFormationOfLeaseAgreement_019caf84-9631-7338-b776-73aba49acbd3" xlink:href="vici-20260331.xsd#vici_RealEstateInvestmentsAdditionalCapitalExpenditureRequirementTiedToTheFormationOfLeaseAgreement"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateLineItems_019caf84-9631-730e-95ad-7fc652d38a6e" xlink:to="loc_vici_RealEstateInvestmentsAdditionalCapitalExpenditureRequirementTiedToTheFormationOfLeaseAgreement_019caf84-9631-7338-b776-73aba49acbd3" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_RealEstateInvestmentsMinimumAmountToBeExpendedAcrossCertainAffiliatesAndOtherAssets_019caf84-9631-703c-afb8-63d7e8d50dbc" xlink:href="vici-20260331.xsd#vici_RealEstateInvestmentsMinimumAmountToBeExpendedAcrossCertainAffiliatesAndOtherAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateLineItems_019caf84-9631-730e-95ad-7fc652d38a6e" xlink:to="loc_vici_RealEstateInvestmentsMinimumAmountToBeExpendedAcrossCertainAffiliatesAndOtherAssets_019caf84-9631-703c-afb8-63d7e8d50dbc" xlink:type="arc" order="7"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://viciproperties.com/role/RealEstatePortfolioScheduleofInvestmentinLoansDetails" xlink:type="simple" xlink:href="vici-20260331.xsd#RealEstatePortfolioScheduleofInvestmentinLoansDetails"/>
  <link:definitionLink xlink:role="http://viciproperties.com/role/RealEstatePortfolioScheduleofInvestmentinLoansDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LoansAndLeasesReceivableDisclosureLineItems_019caf84-9631-7e9c-b870-a470b8be7c60" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LoansAndLeasesReceivableDisclosureLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LoansAndLeasesReceivableDisclosureTable_019caf84-9631-7bcd-899e-0bd40037b2db" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LoansAndLeasesReceivableDisclosureTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LoansAndLeasesReceivableDisclosureLineItems_019caf84-9631-7e9c-b870-a470b8be7c60" xlink:to="loc_us-gaap_LoansAndLeasesReceivableDisclosureTable_019caf84-9631-7bcd-899e-0bd40037b2db" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeAxis_019caf84-9631-7ac3-a17b-c30780117344" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InvestmentTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LoansAndLeasesReceivableDisclosureTable_019caf84-9631-7bcd-899e-0bd40037b2db" xlink:to="loc_us-gaap_InvestmentTypeAxis_019caf84-9631-7ac3-a17b-c30780117344" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeCategorizationMember_019caf84-9631-7ac3-a17b-c30780117344_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InvestmentTypeCategorizationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_InvestmentTypeAxis_019caf84-9631-7ac3-a17b-c30780117344" xlink:to="loc_us-gaap_InvestmentTypeCategorizationMember_019caf84-9631-7ac3-a17b-c30780117344_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeCategorizationMember_019caf84-9631-70ac-8047-2090606be123" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InvestmentTypeCategorizationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_InvestmentTypeAxis_019caf84-9631-7ac3-a17b-c30780117344" xlink:to="loc_us-gaap_InvestmentTypeCategorizationMember_019caf84-9631-70ac-8047-2090606be123" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_019caf84-9631-73ff-8bb1-e4631675f4bf" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SeniorNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_019caf84-9631-70ac-8047-2090606be123" xlink:to="loc_us-gaap_SeniorNotesMember_019caf84-9631-73ff-8bb1-e4631675f4bf" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorLoansMember_019caf84-9631-7501-b215-c623da2aa2b4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SeniorLoansMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_019caf84-9631-70ac-8047-2090606be123" xlink:to="loc_us-gaap_SeniorLoansMember_019caf84-9631-7501-b215-c623da2aa2b4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_MezzanineLoansAndPreferredEquityMember_019caf84-9631-7cfa-8e95-5af5fe75deb5" xlink:href="vici-20260331.xsd#vici_MezzanineLoansAndPreferredEquityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_019caf84-9631-70ac-8047-2090606be123" xlink:to="loc_vici_MezzanineLoansAndPreferredEquityMember_019caf84-9631-7cfa-8e95-5af5fe75deb5" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019caf84-9631-79a6-b1e4-4df15d9a4932" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LoansAndLeasesReceivableDisclosureTable_019caf84-9631-7bcd-899e-0bd40037b2db" xlink:to="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019caf84-9631-79a6-b1e4-4df15d9a4932" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivableTypeDomain_019caf84-9631-79a6-b1e4-4df15d9a4932_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ReceivableTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019caf84-9631-79a6-b1e4-4df15d9a4932" xlink:to="loc_us-gaap_ReceivableTypeDomain_019caf84-9631-79a6-b1e4-4df15d9a4932_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivableTypeDomain_019caf84-9631-70e5-a9bc-fd0671f0e0b0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ReceivableTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019caf84-9631-79a6-b1e4-4df15d9a4932" xlink:to="loc_us-gaap_ReceivableTypeDomain_019caf84-9631-70e5-a9bc-fd0671f0e0b0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LoansReceivableAndSecuritiesMember_019cd1f1-7bd9-7c7b-a412-3d0001df5e43" xlink:href="vici-20260331.xsd#vici_LoansReceivableAndSecuritiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReceivableTypeDomain_019caf84-9631-70e5-a9bc-fd0671f0e0b0" xlink:to="loc_vici_LoansReceivableAndSecuritiesMember_019cd1f1-7bd9-7c7b-a412-3d0001df5e43" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_PrincipalBalance_019caf84-9631-7086-ad3d-8248499569d8" xlink:href="vici-20260331.xsd#vici_PrincipalBalance"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LoansAndLeasesReceivableDisclosureLineItems_019caf84-9631-7e9c-b870-a470b8be7c60" xlink:to="loc_vici_PrincipalBalance_019caf84-9631-7086-ad3d-8248499569d8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesHeldToMaturityAmortizedCostAfterAllowanceForCreditLoss_019caf84-9631-7285-9e40-950676587c6d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtSecuritiesHeldToMaturityAmortizedCostAfterAllowanceForCreditLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LoansAndLeasesReceivableDisclosureLineItems_019caf84-9631-7e9c-b870-a470b8be7c60" xlink:to="loc_us-gaap_DebtSecuritiesHeldToMaturityAmortizedCostAfterAllowanceForCreditLoss_019caf84-9631-7285-9e40-950676587c6d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss_019caf84-9631-7a32-9b49-1e086adcb7b6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LoansAndLeasesReceivableDisclosureLineItems_019caf84-9631-7e9c-b870-a470b8be7c60" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss_019caf84-9631-7a32-9b49-1e086adcb7b6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LoanPortfolioFutureFundingCommitments_019caf84-9631-7e14-bd32-b0645afea00c" xlink:href="vici-20260331.xsd#vici_LoanPortfolioFutureFundingCommitments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LoansAndLeasesReceivableDisclosureLineItems_019caf84-9631-7e9c-b870-a470b8be7c60" xlink:to="loc_vici_LoanPortfolioFutureFundingCommitments_019caf84-9631-7e14-bd32-b0645afea00c" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_DebtSecuritiesHeldToMaturityWeightedAverageInterestRate_019caf84-9631-7906-8afa-638164f54f6d" xlink:href="vici-20260331.xsd#vici_DebtSecuritiesHeldToMaturityWeightedAverageInterestRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LoansAndLeasesReceivableDisclosureLineItems_019caf84-9631-7e9c-b870-a470b8be7c60" xlink:to="loc_vici_DebtSecuritiesHeldToMaturityWeightedAverageInterestRate_019caf84-9631-7906-8afa-638164f54f6d" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_FinancingReceivableWeightedAverageInterestRate_019caf84-9631-701f-aea4-3be8c69e5534" xlink:href="vici-20260331.xsd#vici_FinancingReceivableWeightedAverageInterestRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LoansAndLeasesReceivableDisclosureLineItems_019caf84-9631-7e9c-b870-a470b8be7c60" xlink:to="loc_vici_FinancingReceivableWeightedAverageInterestRate_019caf84-9631-701f-aea4-3be8c69e5534" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_DebtSecuritiesHeldToMaturityWeightedAverageTerm_019caf84-9631-7c1e-bf9a-bdf8879b18d2" xlink:href="vici-20260331.xsd#vici_DebtSecuritiesHeldToMaturityWeightedAverageTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LoansAndLeasesReceivableDisclosureLineItems_019caf84-9631-7e9c-b870-a470b8be7c60" xlink:to="loc_vici_DebtSecuritiesHeldToMaturityWeightedAverageTerm_019caf84-9631-7c1e-bf9a-bdf8879b18d2" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_FinancingReceivableWeightedAverageTerm_019caf84-9631-73cc-a92c-1380c249332a" xlink:href="vici-20260331.xsd#vici_FinancingReceivableWeightedAverageTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LoansAndLeasesReceivableDisclosureLineItems_019caf84-9631-7e9c-b870-a470b8be7c60" xlink:to="loc_vici_FinancingReceivableWeightedAverageTerm_019caf84-9631-73cc-a92c-1380c249332a" xlink:type="arc" order="7"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://viciproperties.com/role/RealEstatePortfolioScheduleofMovementofFinancingReceivableExcludingAccruedInterestafterAllowanceforCreditLossDetails" xlink:type="simple" xlink:href="vici-20260331.xsd#RealEstatePortfolioScheduleofMovementofFinancingReceivableExcludingAccruedInterestafterAllowanceforCreditLossDetails"/>
  <link:definitionLink xlink:role="http://viciproperties.com/role/RealEstatePortfolioScheduleofMovementofFinancingReceivableExcludingAccruedInterestafterAllowanceforCreditLossDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_019caf84-9631-72a5-8cc3-666eec0fc6e0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsNotesAndLoansReceivableLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_019caf84-9631-7fb5-878a-ea06fb4b8469" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_019caf84-9631-72a5-8cc3-666eec0fc6e0" xlink:to="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_019caf84-9631-7fb5-878a-ea06fb4b8469" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019caf84-9631-73d6-aada-b085ac7dc5c7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_019caf84-9631-7fb5-878a-ea06fb4b8469" xlink:to="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019caf84-9631-73d6-aada-b085ac7dc5c7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivableTypeDomain_019caf84-9631-73d6-aada-b085ac7dc5c7_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ReceivableTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019caf84-9631-73d6-aada-b085ac7dc5c7" xlink:to="loc_us-gaap_ReceivableTypeDomain_019caf84-9631-73d6-aada-b085ac7dc5c7_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivableTypeDomain_019caf84-9631-72c2-ae66-ff17f4965d3e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ReceivableTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019caf84-9631-73d6-aada-b085ac7dc5c7" xlink:to="loc_us-gaap_ReceivableTypeDomain_019caf84-9631-72c2-ae66-ff17f4965d3e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LoansReceivableAndSecuritiesMember_019caf84-9631-71e3-a428-18f12b9f7c16" xlink:href="vici-20260331.xsd#vici_LoansReceivableAndSecuritiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReceivableTypeDomain_019caf84-9631-72c2-ae66-ff17f4965d3e" xlink:to="loc_vici_LoansReceivableAndSecuritiesMember_019caf84-9631-71e3-a428-18f12b9f7c16" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward_019caf84-9631-7673-a764-571a4bc31426" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_019caf84-9631-72a5-8cc3-666eec0fc6e0" xlink:to="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward_019caf84-9631-7673-a764-571a4bc31426" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss_019caf84-9631-7464-acee-5eb6f8916b7a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward_019caf84-9631-7673-a764-571a4bc31426" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss_019caf84-9631-7464-acee-5eb6f8916b7a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_FinancingReceivableFundings_019caf84-9631-7f63-a573-2e5d1f56ce18" xlink:href="vici-20260331.xsd#vici_FinancingReceivableFundings"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward_019caf84-9631-7673-a764-571a4bc31426" xlink:to="loc_vici_FinancingReceivableFundings_019caf84-9631-7f63-a573-2e5d1f56ce18" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaidInKindInterest_019caf84-9631-77c6-9514-276f1ca918a3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaidInKindInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward_019caf84-9631-7673-a764-571a4bc31426" xlink:to="loc_us-gaap_PaidInKindInterest_019caf84-9631-77c6-9514-276f1ca918a3" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_ProceedsFromSaleAndCollectionOfMortgageNotesReceivableExcludingDeferredFees_019caf84-9631-7353-b34b-7e296a84e458" xlink:href="vici-20260331.xsd#vici_ProceedsFromSaleAndCollectionOfMortgageNotesReceivableExcludingDeferredFees"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward_019caf84-9631-7673-a764-571a4bc31426" xlink:to="loc_vici_ProceedsFromSaleAndCollectionOfMortgageNotesReceivableExcludingDeferredFees_019caf84-9631-7353-b34b-7e296a84e458" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_ProceedsFromSaleAndCollectionOfMortgageNotesReceivableDeferredFees_019d9b5d-4295-72af-a81d-19314c3f2308" xlink:href="vici-20260331.xsd#vici_ProceedsFromSaleAndCollectionOfMortgageNotesReceivableDeferredFees"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward_019caf84-9631-7673-a764-571a4bc31426" xlink:to="loc_vici_ProceedsFromSaleAndCollectionOfMortgageNotesReceivableDeferredFees_019d9b5d-4295-72af-a81d-19314c3f2308" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesPeriodIncreaseDecrease_019caf84-9631-7909-8a19-209b6add448d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableAllowanceForCreditLossesPeriodIncreaseDecrease"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward_019caf84-9631-7673-a764-571a4bc31426" xlink:to="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesPeriodIncreaseDecrease_019caf84-9631-7909-8a19-209b6add448d" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLossOtherIncreaseDecrease_019caf84-9631-7ff5-b8bd-3528054b99a6" xlink:href="vici-20260331.xsd#vici_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLossOtherIncreaseDecrease"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward_019caf84-9631-7673-a764-571a4bc31426" xlink:to="loc_vici_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLossOtherIncreaseDecrease_019caf84-9631-7ff5-b8bd-3528054b99a6" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss_019caf84-9631-7b14-9b74-24aec792f824" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://viciproperties.com/role/AllowanceforCreditLossesScheduleofAllowanceforCreditLossesinInvestmentinLeasesLoansSecuritiesandOtherAssetsDetails" xlink:type="simple" xlink:href="vici-20260331.xsd#AllowanceforCreditLossesScheduleofAllowanceforCreditLossesinInvestmentinLeasesLoansSecuritiesandOtherAssetsDetails"/>
  <link:definitionLink xlink:role="http://viciproperties.com/role/AllowanceforCreditLossesScheduleofAllowanceforCreditLossesinInvestmentinLeasesLoansSecuritiesandOtherAssetsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems_019caf84-9631-700c-b4ad-26ec634902cc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfFinancingReceivableAllowanceForCreditLossesTable_019caf84-9631-7bf0-b001-c5103717826e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfFinancingReceivableAllowanceForCreditLossesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems_019caf84-9631-700c-b4ad-26ec634902cc" xlink:to="loc_us-gaap_ScheduleOfFinancingReceivableAllowanceForCreditLossesTable_019caf84-9631-7bf0-b001-c5103717826e" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019caf84-9631-7f9d-9dce-2bf9904d3619" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFinancingReceivableAllowanceForCreditLossesTable_019caf84-9631-7bf0-b001-c5103717826e" xlink:to="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019caf84-9631-7f9d-9dce-2bf9904d3619" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivableTypeDomain_019caf84-9631-7f9d-9dce-2bf9904d3619_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ReceivableTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019caf84-9631-7f9d-9dce-2bf9904d3619" xlink:to="loc_us-gaap_ReceivableTypeDomain_019caf84-9631-7f9d-9dce-2bf9904d3619_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivableTypeDomain_019caf84-9631-7ee6-9e41-48b7314cb957" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ReceivableTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019caf84-9631-7f9d-9dce-2bf9904d3619" xlink:to="loc_us-gaap_ReceivableTypeDomain_019caf84-9631-7ee6-9e41-48b7314cb957" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceReceivablesMember_019caf84-9631-7ac7-9f54-6ef4f5cc807e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceReceivablesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReceivableTypeDomain_019caf84-9631-7ee6-9e41-48b7314cb957" xlink:to="loc_us-gaap_FinanceReceivablesMember_019caf84-9631-7ac7-9f54-6ef4f5cc807e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LoansReceivableAndSecuritiesMember_019caf84-9631-7ea2-8b47-c247312c91d8" xlink:href="vici-20260331.xsd#vici_LoansReceivableAndSecuritiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReceivableTypeDomain_019caf84-9631-7ee6-9e41-48b7314cb957" xlink:to="loc_vici_LoansReceivableAndSecuritiesMember_019caf84-9631-7ea2-8b47-c247312c91d8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TypeOfArrangementAxis_019caf84-9631-764d-a6b6-cdc9ac37c6fb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TypeOfArrangementAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFinancingReceivableAllowanceForCreditLossesTable_019caf84-9631-7bf0-b001-c5103717826e" xlink:to="loc_us-gaap_TypeOfArrangementAxis_019caf84-9631-764d-a6b6-cdc9ac37c6fb" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_019caf84-9631-764d-a6b6-cdc9ac37c6fb_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ArrangementsAndNonarrangementTransactionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_TypeOfArrangementAxis_019caf84-9631-764d-a6b6-cdc9ac37c6fb" xlink:to="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_019caf84-9631-764d-a6b6-cdc9ac37c6fb_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_019caf84-9631-7c91-b398-976917122f22" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ArrangementsAndNonarrangementTransactionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_TypeOfArrangementAxis_019caf84-9631-764d-a6b6-cdc9ac37c6fb" xlink:to="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_019caf84-9631-7c91-b398-976917122f22" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_FinanceAndSalesTypeSubLeaseMember_019caf84-9631-7fbc-ac7d-4670969aed89" xlink:href="vici-20260331.xsd#vici_FinanceAndSalesTypeSubLeaseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_019caf84-9631-7c91-b398-976917122f22" xlink:to="loc_vici_FinanceAndSalesTypeSubLeaseMember_019caf84-9631-7fbc-ac7d-4670969aed89" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_NetInvestmentInLeaseAllowanceForCreditLossAmortizationCostAbstract_019caf84-9631-768b-bebe-cfc7b31ceb37" xlink:href="vici-20260331.xsd#vici_NetInvestmentInLeaseAllowanceForCreditLossAmortizationCostAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems_019caf84-9631-700c-b4ad-26ec634902cc" xlink:to="loc_vici_NetInvestmentInLeaseAllowanceForCreditLossAmortizationCostAbstract_019caf84-9631-768b-bebe-cfc7b31ceb37" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetInvestmentInLeaseExcludingAccruedInterestBeforeAllowanceForCreditLoss_019caf84-9631-7520-ac8d-ec04f703b641" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetInvestmentInLeaseExcludingAccruedInterestBeforeAllowanceForCreditLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_vici_NetInvestmentInLeaseAllowanceForCreditLossAmortizationCostAbstract_019caf84-9631-768b-bebe-cfc7b31ceb37" xlink:to="loc_us-gaap_NetInvestmentInLeaseExcludingAccruedInterestBeforeAllowanceForCreditLoss_019caf84-9631-7520-ac8d-ec04f703b641" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss_019caf84-9631-7cee-a60c-6d70b5aa8957" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_vici_NetInvestmentInLeaseAllowanceForCreditLossAmortizationCostAbstract_019caf84-9631-768b-bebe-cfc7b31ceb37" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss_019caf84-9631-7cee-a60c-6d70b5aa8957" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_OtherAssetsSalesTypeSubLeasesExcludingAccruedInterestBeforeAllowanceForCreditLosses_019caf84-9631-7c6f-8d63-d3bcc8377504" xlink:href="vici-20260331.xsd#vici_OtherAssetsSalesTypeSubLeasesExcludingAccruedInterestBeforeAllowanceForCreditLosses"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_vici_NetInvestmentInLeaseAllowanceForCreditLossAmortizationCostAbstract_019caf84-9631-768b-bebe-cfc7b31ceb37" xlink:to="loc_vici_OtherAssetsSalesTypeSubLeasesExcludingAccruedInterestBeforeAllowanceForCreditLosses_019caf84-9631-7c6f-8d63-d3bcc8377504" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_FinancingReceivablesNetInvestmentInLeaseAndLoansExcludingAccruedInterestAmortizedCost_019caf84-9631-7f66-b8c3-fe70f64ed423" xlink:href="vici-20260331.xsd#vici_FinancingReceivablesNetInvestmentInLeaseAndLoansExcludingAccruedInterestAmortizedCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_vici_NetInvestmentInLeaseAllowanceForCreditLossAmortizationCostAbstract_019caf84-9631-768b-bebe-cfc7b31ceb37" xlink:to="loc_vici_FinancingReceivablesNetInvestmentInLeaseAndLoansExcludingAccruedInterestAmortizedCost_019caf84-9631-7f66-b8c3-fe70f64ed423" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_NetInvestmentInLeaseAllowanceForCreditLossRecoveryAbstract_019caf84-9631-7412-ad09-da6bcfce3e8e" xlink:href="vici-20260331.xsd#vici_NetInvestmentInLeaseAllowanceForCreditLossRecoveryAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems_019caf84-9631-700c-b4ad-26ec634902cc" xlink:to="loc_vici_NetInvestmentInLeaseAllowanceForCreditLossRecoveryAbstract_019caf84-9631-7412-ad09-da6bcfce3e8e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetInvestmentInLeaseAllowanceForCreditLossExcludingAccruedInterest_019caf84-9631-7843-a332-5b07e4d1979b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetInvestmentInLeaseAllowanceForCreditLossExcludingAccruedInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_vici_NetInvestmentInLeaseAllowanceForCreditLossRecoveryAbstract_019caf84-9631-7412-ad09-da6bcfce3e8e" xlink:to="loc_us-gaap_NetInvestmentInLeaseAllowanceForCreditLossExcludingAccruedInterest_019caf84-9631-7843-a332-5b07e4d1979b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest_019caf84-9631-781e-8759-100c7d839e32" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_vici_NetInvestmentInLeaseAllowanceForCreditLossRecoveryAbstract_019caf84-9631-7412-ad09-da6bcfce3e8e" xlink:to="loc_us-gaap_FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest_019caf84-9631-781e-8759-100c7d839e32" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesTypeLeaseNetInvestmentInLeaseAllowanceForCreditLoss_019caf84-9631-74db-ae2d-45ff6bf37c83" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SalesTypeLeaseNetInvestmentInLeaseAllowanceForCreditLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_vici_NetInvestmentInLeaseAllowanceForCreditLossRecoveryAbstract_019caf84-9631-7412-ad09-da6bcfce3e8e" xlink:to="loc_us-gaap_SalesTypeLeaseNetInvestmentInLeaseAllowanceForCreditLoss_019caf84-9631-74db-ae2d-45ff6bf37c83" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_FinancingReceivablesNetInvestmentInLeaseAndLoansExcludingAccruedInterestAndOffBalanceSheetCreditLossAllowanceForCreditLoss_019caf84-9631-7df0-9081-28b0e0202724" xlink:href="vici-20260331.xsd#vici_FinancingReceivablesNetInvestmentInLeaseAndLoansExcludingAccruedInterestAndOffBalanceSheetCreditLossAllowanceForCreditLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_vici_NetInvestmentInLeaseAllowanceForCreditLossRecoveryAbstract_019caf84-9631-7412-ad09-da6bcfce3e8e" xlink:to="loc_vici_FinancingReceivablesNetInvestmentInLeaseAndLoansExcludingAccruedInterestAndOffBalanceSheetCreditLossAllowanceForCreditLoss_019caf84-9631-7df0-9081-28b0e0202724" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetInvestmentInLeaseAllowanceForCreditLossAbstract_019caf84-9631-74a1-8498-533b82b2c91d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetInvestmentInLeaseAllowanceForCreditLossAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems_019caf84-9631-700c-b4ad-26ec634902cc" xlink:to="loc_us-gaap_NetInvestmentInLeaseAllowanceForCreditLossAbstract_019caf84-9631-74a1-8498-533b82b2c91d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetInvestmentInLeaseExcludingAccruedInterestAfterAllowanceForCreditLoss_019caf84-9631-749f-8e4a-b25ad331c1c8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetInvestmentInLeaseExcludingAccruedInterestAfterAllowanceForCreditLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetInvestmentInLeaseAllowanceForCreditLossAbstract_019caf84-9631-74a1-8498-533b82b2c91d" xlink:to="loc_us-gaap_NetInvestmentInLeaseExcludingAccruedInterestAfterAllowanceForCreditLoss_019caf84-9631-749f-8e4a-b25ad331c1c8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss_019caf84-9631-73cb-b05f-2ddd95ba7d9c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetInvestmentInLeaseAllowanceForCreditLossAbstract_019caf84-9631-74a1-8498-533b82b2c91d" xlink:to="loc_us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss_019caf84-9631-73cb-b05f-2ddd95ba7d9c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_OtherAssetsSalesTypeSubLeasesExcludingAccruedInterestAfterAllowanceForCreditLoss_019caf84-9631-70cf-b40c-f900d7bfadb2" xlink:href="vici-20260331.xsd#vici_OtherAssetsSalesTypeSubLeasesExcludingAccruedInterestAfterAllowanceForCreditLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetInvestmentInLeaseAllowanceForCreditLossAbstract_019caf84-9631-74a1-8498-533b82b2c91d" xlink:to="loc_vici_OtherAssetsSalesTypeSubLeasesExcludingAccruedInterestAfterAllowanceForCreditLoss_019caf84-9631-70cf-b40c-f900d7bfadb2" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_FinancingReceivablesNetInvestmentInLeaseAndLoansExcludingAccruedInterestAfterAllowanceForCreditLoss_019caf84-9631-754e-b842-642b02be0a26" xlink:href="vici-20260331.xsd#vici_FinancingReceivablesNetInvestmentInLeaseAndLoansExcludingAccruedInterestAfterAllowanceForCreditLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetInvestmentInLeaseAllowanceForCreditLossAbstract_019caf84-9631-74a1-8498-533b82b2c91d" xlink:to="loc_vici_FinancingReceivablesNetInvestmentInLeaseAndLoansExcludingAccruedInterestAfterAllowanceForCreditLoss_019caf84-9631-754e-b842-642b02be0a26" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_NetInvestmentInLeaseAllowanceForCreditLossPercentageAbstract_019caf84-9631-76b8-b420-971713cce607" xlink:href="vici-20260331.xsd#vici_NetInvestmentInLeaseAllowanceForCreditLossPercentageAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems_019caf84-9631-700c-b4ad-26ec634902cc" xlink:to="loc_vici_NetInvestmentInLeaseAllowanceForCreditLossPercentageAbstract_019caf84-9631-76b8-b420-971713cce607" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_NetInvestmentInLeaseExcludingAccruedInterestAllowanceForCreditLossPercentage_019caf84-9631-7b69-ada2-e4900968a5c6" xlink:href="vici-20260331.xsd#vici_NetInvestmentInLeaseExcludingAccruedInterestAllowanceForCreditLossPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_vici_NetInvestmentInLeaseAllowanceForCreditLossPercentageAbstract_019caf84-9631-76b8-b420-971713cce607" xlink:to="loc_vici_NetInvestmentInLeaseExcludingAccruedInterestAllowanceForCreditLossPercentage_019caf84-9631-7b69-ada2-e4900968a5c6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossPercentage_019caf84-9631-7119-bab9-27961b32cc35" xlink:href="vici-20260331.xsd#vici_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_vici_NetInvestmentInLeaseAllowanceForCreditLossPercentageAbstract_019caf84-9631-76b8-b420-971713cce607" xlink:to="loc_vici_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossPercentage_019caf84-9631-7119-bab9-27961b32cc35" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_OtherAssetsSalesTypeSubLeasesExcludingAccruedInterestAllowanceForCreditLossesPercentage_019caf84-9631-7127-90f5-9538945fe4b9" xlink:href="vici-20260331.xsd#vici_OtherAssetsSalesTypeSubLeasesExcludingAccruedInterestAllowanceForCreditLossesPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_vici_NetInvestmentInLeaseAllowanceForCreditLossPercentageAbstract_019caf84-9631-76b8-b420-971713cce607" xlink:to="loc_vici_OtherAssetsSalesTypeSubLeasesExcludingAccruedInterestAllowanceForCreditLossesPercentage_019caf84-9631-7127-90f5-9538945fe4b9" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_FinancingReceivablesNetInvestmentInLeaseAndLoansExcludingAccruedInterestAllowanceForCreditLossPercentage_019caf84-9631-731d-8a5a-a2aef9258833" xlink:href="vici-20260331.xsd#vici_FinancingReceivablesNetInvestmentInLeaseAndLoansExcludingAccruedInterestAllowanceForCreditLossPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_vici_NetInvestmentInLeaseAllowanceForCreditLossPercentageAbstract_019caf84-9631-76b8-b420-971713cce607" xlink:to="loc_vici_FinancingReceivablesNetInvestmentInLeaseAndLoansExcludingAccruedInterestAllowanceForCreditLossPercentage_019caf84-9631-731d-8a5a-a2aef9258833" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OffBalanceSheetCreditLossLiability_019caf84-9631-7f87-8b37-6eb028c17fa5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OffBalanceSheetCreditLossLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems_019caf84-9631-700c-b4ad-26ec634902cc" xlink:to="loc_us-gaap_OffBalanceSheetCreditLossLiability_019caf84-9631-7f87-8b37-6eb028c17fa5" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://viciproperties.com/role/AllowanceforCreditLossesScheduleofFinancingReceivableCreditQualityDetails" xlink:type="simple" xlink:href="vici-20260331.xsd#AllowanceforCreditLossesScheduleofFinancingReceivableCreditQualityDetails"/>
  <link:definitionLink xlink:role="http://viciproperties.com/role/AllowanceforCreditLossesScheduleofFinancingReceivableCreditQualityDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentLineItems_019caf84-9631-7ebf-aa1f-19e547cd9578" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancingReceivableRecordedInvestmentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfFinancingReceivableRecordedInvestmentCreditQualityIndicatorTable_019caf84-9631-77ec-9036-63ef7b39a021" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfFinancingReceivableRecordedInvestmentCreditQualityIndicatorTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentLineItems_019caf84-9631-7ebf-aa1f-19e547cd9578" xlink:to="loc_us-gaap_ScheduleOfFinancingReceivableRecordedInvestmentCreditQualityIndicatorTable_019caf84-9631-77ec-9036-63ef7b39a021" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CreditRatingMoodysAxis_019caf84-9631-70b1-b6f4-d6b79c07683b" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_CreditRatingMoodysAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFinancingReceivableRecordedInvestmentCreditQualityIndicatorTable_019caf84-9631-77ec-9036-63ef7b39a021" xlink:to="loc_srt_CreditRatingMoodysAxis_019caf84-9631-70b1-b6f4-d6b79c07683b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ExternalCreditRatingMoodysMember_019caf84-9631-70b1-b6f4-d6b79c07683b_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ExternalCreditRatingMoodysMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_CreditRatingMoodysAxis_019caf84-9631-70b1-b6f4-d6b79c07683b" xlink:to="loc_srt_ExternalCreditRatingMoodysMember_019caf84-9631-70b1-b6f4-d6b79c07683b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ExternalCreditRatingMoodysMember_019caf84-9631-7257-b4e0-42dbc82905cb" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ExternalCreditRatingMoodysMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_CreditRatingMoodysAxis_019caf84-9631-70b1-b6f4-d6b79c07683b" xlink:to="loc_srt_ExternalCreditRatingMoodysMember_019caf84-9631-7257-b4e0-42dbc82905cb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MoodysBa2RatingMember_019caf84-9631-77dc-813e-376a24e4e2fb" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MoodysBa2RatingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ExternalCreditRatingMoodysMember_019caf84-9631-7257-b4e0-42dbc82905cb" xlink:to="loc_srt_MoodysBa2RatingMember_019caf84-9631-77dc-813e-376a24e4e2fb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MoodysBa3RatingMember_019caf84-9631-7cd6-a821-d18b4b6eb793" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MoodysBa3RatingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ExternalCreditRatingMoodysMember_019caf84-9631-7257-b4e0-42dbc82905cb" xlink:to="loc_srt_MoodysBa3RatingMember_019caf84-9631-7cd6-a821-d18b4b6eb793" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MoodysB1RatingMember_019caf84-9631-7043-aff3-6bb58e10fb8d" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MoodysB1RatingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ExternalCreditRatingMoodysMember_019caf84-9631-7257-b4e0-42dbc82905cb" xlink:to="loc_srt_MoodysB1RatingMember_019caf84-9631-7043-aff3-6bb58e10fb8d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MoodysB2RatingMember_019caf84-9631-70d1-a4ce-a558441d12e3" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MoodysB2RatingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ExternalCreditRatingMoodysMember_019caf84-9631-7257-b4e0-42dbc82905cb" xlink:to="loc_srt_MoodysB2RatingMember_019caf84-9631-70d1-a4ce-a558441d12e3" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MoodysB3RatingMember_019caf84-9631-72e1-a8da-fa7a961341a5" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MoodysB3RatingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ExternalCreditRatingMoodysMember_019caf84-9631-7257-b4e0-42dbc82905cb" xlink:to="loc_srt_MoodysB3RatingMember_019caf84-9631-72e1-a8da-fa7a961341a5" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MoodysCaa1RatingMember_019caf84-9631-7d05-8d95-4659a71778ef" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MoodysCaa1RatingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ExternalCreditRatingMoodysMember_019caf84-9631-7257-b4e0-42dbc82905cb" xlink:to="loc_srt_MoodysCaa1RatingMember_019caf84-9631-7d05-8d95-4659a71778ef" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_NoRatingMember_019caf84-9631-70e1-b437-de0b9a884b3e" xlink:href="vici-20260331.xsd#vici_NoRatingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ExternalCreditRatingMoodysMember_019caf84-9631-7257-b4e0-42dbc82905cb" xlink:to="loc_vici_NoRatingMember_019caf84-9631-70e1-b437-de0b9a884b3e" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_FinancingReceivablesNetInvestmentInLeaseAndLoansExcludingAccruedInterestYearOneOriginatedCurrentFiscalYear_019caf84-9631-7cb3-8b80-3c26a73b1fd8" xlink:href="vici-20260331.xsd#vici_FinancingReceivablesNetInvestmentInLeaseAndLoansExcludingAccruedInterestYearOneOriginatedCurrentFiscalYear"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentLineItems_019caf84-9631-7ebf-aa1f-19e547cd9578" xlink:to="loc_vici_FinancingReceivablesNetInvestmentInLeaseAndLoansExcludingAccruedInterestYearOneOriginatedCurrentFiscalYear_019caf84-9631-7cb3-8b80-3c26a73b1fd8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_FinancingReceivablesNetInvestmentInLeaseAndLoansExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear_019caf84-9631-7d7b-8f6d-1694a07ec41f" xlink:href="vici-20260331.xsd#vici_FinancingReceivablesNetInvestmentInLeaseAndLoansExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentLineItems_019caf84-9631-7ebf-aa1f-19e547cd9578" xlink:to="loc_vici_FinancingReceivablesNetInvestmentInLeaseAndLoansExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear_019caf84-9631-7d7b-8f6d-1694a07ec41f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_FinancingReceivablesNetInvestmentInLeaseAndLoansExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear_019caf84-9631-7ffb-aa60-52a2a0d3badf" xlink:href="vici-20260331.xsd#vici_FinancingReceivablesNetInvestmentInLeaseAndLoansExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentLineItems_019caf84-9631-7ebf-aa1f-19e547cd9578" xlink:to="loc_vici_FinancingReceivablesNetInvestmentInLeaseAndLoansExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear_019caf84-9631-7ffb-aa60-52a2a0d3badf" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_FinancingReceivablesNetInvestmentInLeaseAndLoansExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYear_019caf84-9631-790d-b17d-c1e82eb12505" xlink:href="vici-20260331.xsd#vici_FinancingReceivablesNetInvestmentInLeaseAndLoansExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYear"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentLineItems_019caf84-9631-7ebf-aa1f-19e547cd9578" xlink:to="loc_vici_FinancingReceivablesNetInvestmentInLeaseAndLoansExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYear_019caf84-9631-790d-b17d-c1e82eb12505" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_FinancingReceivablesNetInvestmentInLeaseAndLoansExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYear_019caf84-9631-737d-9029-b35c0e609cd5" xlink:href="vici-20260331.xsd#vici_FinancingReceivablesNetInvestmentInLeaseAndLoansExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYear"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentLineItems_019caf84-9631-7ebf-aa1f-19e547cd9578" xlink:to="loc_vici_FinancingReceivablesNetInvestmentInLeaseAndLoansExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYear_019caf84-9631-737d-9029-b35c0e609cd5" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_FinancingReceivablesNetInvestmentInLeaseAndLoansExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear_019caf84-9631-713b-97bb-a76f2e2f98ec" xlink:href="vici-20260331.xsd#vici_FinancingReceivablesNetInvestmentInLeaseAndLoansExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentLineItems_019caf84-9631-7ebf-aa1f-19e547cd9578" xlink:to="loc_vici_FinancingReceivablesNetInvestmentInLeaseAndLoansExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear_019caf84-9631-713b-97bb-a76f2e2f98ec" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_FinancingReceivablesNetInvestmentInLeaseAndLoansExcludingAccruedInterestAmortizedCost_019caf84-9631-7c23-bf9a-28452612ff36" xlink:href="vici-20260331.xsd#vici_FinancingReceivablesNetInvestmentInLeaseAndLoansExcludingAccruedInterestAmortizedCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentLineItems_019caf84-9631-7ebf-aa1f-19e547cd9578" xlink:to="loc_vici_FinancingReceivablesNetInvestmentInLeaseAndLoansExcludingAccruedInterestAmortizedCost_019caf84-9631-7c23-bf9a-28452612ff36" xlink:type="arc" order="6"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://viciproperties.com/role/DebtScheduleofOutstandingIndebtednessDetails" xlink:type="simple" xlink:href="vici-20260331.xsd#DebtScheduleofOutstandingIndebtednessDetails"/>
  <link:definitionLink xlink:role="http://viciproperties.com/role/DebtScheduleofOutstandingIndebtednessDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_019caf84-9631-7736-aeec-e9791de696ee" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_019caf84-9631-72e6-9e1c-0b5eae7cf3dd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019caf84-9631-7736-aeec-e9791de696ee" xlink:to="loc_us-gaap_DebtInstrumentTable_019caf84-9631-72e6-9e1c-0b5eae7cf3dd" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CurrencyAxis_019caf84-9631-7763-8a80-2d58fc5f4a5d" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_CurrencyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019caf84-9631-72e6-9e1c-0b5eae7cf3dd" xlink:to="loc_srt_CurrencyAxis_019caf84-9631-7763-8a80-2d58fc5f4a5d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_currency_AllCurrenciesDomain_019caf84-9631-7763-8a80-2d58fc5f4a5d_default" xlink:href="https://xbrl.sec.gov/currency/2025/currency-2025.xsd#currency_AllCurrenciesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_CurrencyAxis_019caf84-9631-7763-8a80-2d58fc5f4a5d" xlink:to="loc_currency_AllCurrenciesDomain_019caf84-9631-7763-8a80-2d58fc5f4a5d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_currency_AllCurrenciesDomain_019caf84-9631-7ebf-875e-8228664758d2" xlink:href="https://xbrl.sec.gov/currency/2025/currency-2025.xsd#currency_AllCurrenciesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_CurrencyAxis_019caf84-9631-7763-8a80-2d58fc5f4a5d" xlink:to="loc_currency_AllCurrenciesDomain_019caf84-9631-7ebf-875e-8228664758d2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_currency_USD_019caf84-9631-77b8-a71b-7e48ce559eb1" xlink:href="https://xbrl.sec.gov/currency/2025/currency-2025.xsd#currency_USD"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_currency_AllCurrenciesDomain_019caf84-9631-7ebf-875e-8228664758d2" xlink:to="loc_currency_USD_019caf84-9631-77b8-a71b-7e48ce559eb1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_currency_CAD_019caf84-9631-7258-9ef7-7c75cadb7098" xlink:href="https://xbrl.sec.gov/currency/2025/currency-2025.xsd#currency_CAD"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_currency_AllCurrenciesDomain_019caf84-9631-7ebf-875e-8228664758d2" xlink:to="loc_currency_CAD_019caf84-9631-7258-9ef7-7c75cadb7098" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_currency_GBP_019caf84-9631-7b7d-b489-b5b0ef221b1f" xlink:href="https://xbrl.sec.gov/currency/2025/currency-2025.xsd#currency_GBP"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_currency_AllCurrenciesDomain_019caf84-9631-7ebf-875e-8228664758d2" xlink:to="loc_currency_GBP_019caf84-9631-7b7d-b489-b5b0ef221b1f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_019caf84-9631-7841-a3db-aeb5e16c6d24" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CreditFacilityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019caf84-9631-72e6-9e1c-0b5eae7cf3dd" xlink:to="loc_us-gaap_CreditFacilityAxis_019caf84-9631-7841-a3db-aeb5e16c6d24" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_019caf84-9631-7841-a3db-aeb5e16c6d24_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditFacilityAxis_019caf84-9631-7841-a3db-aeb5e16c6d24" xlink:to="loc_us-gaap_CreditFacilityDomain_019caf84-9631-7841-a3db-aeb5e16c6d24_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_019caf84-9631-7d2f-8418-e6543085476c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditFacilityAxis_019caf84-9631-7841-a3db-aeb5e16c6d24" xlink:to="loc_us-gaap_CreditFacilityDomain_019caf84-9631-7d2f-8418-e6543085476c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_019caf84-9631-7568-b916-e8fdc5b82296" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RevolvingCreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_019caf84-9631-7d2f-8418-e6543085476c" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_019caf84-9631-7568-b916-e8fdc5b82296" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019caf84-9631-7b83-92b3-a0e8e37e5634" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019caf84-9631-72e6-9e1c-0b5eae7cf3dd" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019caf84-9631-7b83-92b3-a0e8e37e5634" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019caf84-9631-7b83-92b3-a0e8e37e5634_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019caf84-9631-7b83-92b3-a0e8e37e5634" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019caf84-9631-7b83-92b3-a0e8e37e5634_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019caf84-9631-726f-a8f6-34fb2ef3499f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019caf84-9631-7b83-92b3-a0e8e37e5634" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019caf84-9631-726f-a8f6-34fb2ef3499f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnsecuredDebtMember_019caf84-9631-714c-b5de-5397ab368b5a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnsecuredDebtMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019caf84-9631-726f-a8f6-34fb2ef3499f" xlink:to="loc_us-gaap_UnsecuredDebtMember_019caf84-9631-714c-b5de-5397ab368b5a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateAxis_019caf84-9631-794d-a767-d2fd2ccdaf99" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_VariableRateAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019caf84-9631-72e6-9e1c-0b5eae7cf3dd" xlink:to="loc_us-gaap_VariableRateAxis_019caf84-9631-794d-a767-d2fd2ccdaf99" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateDomain_019caf84-9631-794d-a767-d2fd2ccdaf99_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_VariableRateDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_VariableRateAxis_019caf84-9631-794d-a767-d2fd2ccdaf99" xlink:to="loc_us-gaap_VariableRateDomain_019caf84-9631-794d-a767-d2fd2ccdaf99_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateDomain_019caf84-9631-7b3a-8c96-df08acabd2e3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_VariableRateDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_VariableRateAxis_019caf84-9631-794d-a767-d2fd2ccdaf99" xlink:to="loc_us-gaap_VariableRateDomain_019caf84-9631-7b3a-8c96-df08acabd2e3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuredOvernightFinancingRateSofrMember_019caf84-9631-71d0-a03b-96e601e02a01" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SecuredOvernightFinancingRateSofrMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableRateDomain_019caf84-9631-7b3a-8c96-df08acabd2e3" xlink:to="loc_us-gaap_SecuredOvernightFinancingRateSofrMember_019caf84-9631-71d0-a03b-96e601e02a01" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_CanadianOvernightRepoRateAverageCORRAMember_019caf84-9631-73c0-b0e8-83f34256d29b" xlink:href="vici-20260331.xsd#vici_CanadianOvernightRepoRateAverageCORRAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableRateDomain_019caf84-9631-7b3a-8c96-df08acabd2e3" xlink:to="loc_vici_CanadianOvernightRepoRateAverageCORRAMember_019caf84-9631-73c0-b0e8-83f34256d29b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_SterlingOvernightIndexAverageSONIAMember_019caf84-9631-7734-bf9b-dad013d3bde3" xlink:href="vici-20260331.xsd#vici_SterlingOvernightIndexAverageSONIAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableRateDomain_019caf84-9631-7b3a-8c96-df08acabd2e3" xlink:to="loc_vici_SterlingOvernightIndexAverageSONIAMember_019caf84-9631-7734-bf9b-dad013d3bde3" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019caf84-9631-7574-ad84-b1aa56317f11" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019caf84-9631-72e6-9e1c-0b5eae7cf3dd" xlink:to="loc_us-gaap_DebtInstrumentAxis_019caf84-9631-7574-ad84-b1aa56317f11" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019caf84-9631-7574-ad84-b1aa56317f11_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_019caf84-9631-7574-ad84-b1aa56317f11" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019caf84-9631-7574-ad84-b1aa56317f11_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019caf84-9631-7ec8-90ac-dd2a2b7c80a5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_019caf84-9631-7574-ad84-b1aa56317f11" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019caf84-9631-7ec8-90ac-dd2a2b7c80a5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_MGMGrandMandalayBayCMBSDebtMember_019caf84-9631-7f77-a81f-0f1daec59d98" xlink:href="vici-20260331.xsd#vici_MGMGrandMandalayBayCMBSDebtMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019caf84-9631-7ec8-90ac-dd2a2b7c80a5" xlink:to="loc_vici_MGMGrandMandalayBayCMBSDebtMember_019caf84-9631-7f77-a81f-0f1daec59d98" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_A4.500SeniorUnsecuredNotesDue2026Member_019caf84-9631-7c05-9574-b520ea980fa2" xlink:href="vici-20260331.xsd#vici_A4.500SeniorUnsecuredNotesDue2026Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019caf84-9631-7ec8-90ac-dd2a2b7c80a5" xlink:to="loc_vici_A4.500SeniorUnsecuredNotesDue2026Member_019caf84-9631-7c05-9574-b520ea980fa2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_A4.250SeniorUnsecuredNotesDue2026Member_019caf84-9631-7f17-959b-8f0266550d04" xlink:href="vici-20260331.xsd#vici_A4.250SeniorUnsecuredNotesDue2026Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019caf84-9631-7ec8-90ac-dd2a2b7c80a5" xlink:to="loc_vici_A4.250SeniorUnsecuredNotesDue2026Member_019caf84-9631-7f17-959b-8f0266550d04" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_A5.750SeniorUnsecuredNotesDue2027Member_019caf84-9631-736c-ad4b-e5dde65bb27b" xlink:href="vici-20260331.xsd#vici_A5.750SeniorUnsecuredNotesDue2027Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019caf84-9631-7ec8-90ac-dd2a2b7c80a5" xlink:to="loc_vici_A5.750SeniorUnsecuredNotesDue2027Member_019caf84-9631-736c-ad4b-e5dde65bb27b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_A3.750SeniorUnsecuredNotesDue2027Member_019caf84-9631-77b2-a7f9-23730ce3e928" xlink:href="vici-20260331.xsd#vici_A3.750SeniorUnsecuredNotesDue2027Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019caf84-9631-7ec8-90ac-dd2a2b7c80a5" xlink:to="loc_vici_A3.750SeniorUnsecuredNotesDue2027Member_019caf84-9631-77b2-a7f9-23730ce3e928" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_A4.500SeniorUnsecuredNotesDue2028Member_019caf84-9631-7c8f-91a4-85fc2efb2693" xlink:href="vici-20260331.xsd#vici_A4.500SeniorUnsecuredNotesDue2028Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019caf84-9631-7ec8-90ac-dd2a2b7c80a5" xlink:to="loc_vici_A4.500SeniorUnsecuredNotesDue2028Member_019caf84-9631-7c8f-91a4-85fc2efb2693" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_A4.750SeniorUnsecuredNotesDue2028Member_019caf84-9631-7fd2-9b4d-085aea40fb1a" xlink:href="vici-20260331.xsd#vici_A4.750SeniorUnsecuredNotesDue2028Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019caf84-9631-7ec8-90ac-dd2a2b7c80a5" xlink:to="loc_vici_A4.750SeniorUnsecuredNotesDue2028Member_019caf84-9631-7fd2-9b4d-085aea40fb1a" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_A4.750SeniorUnsecuredNotesDueApril2028Member_019caf84-9631-76bb-9d77-2a001576ba24" xlink:href="vici-20260331.xsd#vici_A4.750SeniorUnsecuredNotesDueApril2028Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019caf84-9631-7ec8-90ac-dd2a2b7c80a5" xlink:to="loc_vici_A4.750SeniorUnsecuredNotesDueApril2028Member_019caf84-9631-76bb-9d77-2a001576ba24" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_A3.875SeniorUnsecuredNotesDue2029Member_019caf84-9631-7755-9127-4946f0329626" xlink:href="vici-20260331.xsd#vici_A3.875SeniorUnsecuredNotesDue2029Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019caf84-9631-7ec8-90ac-dd2a2b7c80a5" xlink:to="loc_vici_A3.875SeniorUnsecuredNotesDue2029Member_019caf84-9631-7755-9127-4946f0329626" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_A4.625SeniorUnsecuredNotesDue2029Member_019caf84-9631-7d54-bde9-3866777ec200" xlink:href="vici-20260331.xsd#vici_A4.625SeniorUnsecuredNotesDue2029Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019caf84-9631-7ec8-90ac-dd2a2b7c80a5" xlink:to="loc_vici_A4.625SeniorUnsecuredNotesDue2029Member_019caf84-9631-7d54-bde9-3866777ec200" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_A4.950SeniorUnsecuredNotesDue2030Member_019caf84-9631-7777-9bab-78bc807e7e04" xlink:href="vici-20260331.xsd#vici_A4.950SeniorUnsecuredNotesDue2030Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019caf84-9631-7ec8-90ac-dd2a2b7c80a5" xlink:to="loc_vici_A4.950SeniorUnsecuredNotesDue2030Member_019caf84-9631-7777-9bab-78bc807e7e04" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_A4.125SeniorUnsecuredNotesDue2030Member_019caf84-9631-7f9f-9bc8-c2f93406339e" xlink:href="vici-20260331.xsd#vici_A4.125SeniorUnsecuredNotesDue2030Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019caf84-9631-7ec8-90ac-dd2a2b7c80a5" xlink:to="loc_vici_A4.125SeniorUnsecuredNotesDue2030Member_019caf84-9631-7f9f-9bc8-c2f93406339e" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_A5.125SeniorUnsecuredNotesDue2031Member_019caf84-9631-79cd-8379-2d8b07e86a04" xlink:href="vici-20260331.xsd#vici_A5.125SeniorUnsecuredNotesDue2031Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019caf84-9631-7ec8-90ac-dd2a2b7c80a5" xlink:to="loc_vici_A5.125SeniorUnsecuredNotesDue2031Member_019caf84-9631-79cd-8379-2d8b07e86a04" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_A5.125SeniorUnsecuredNotesDue2032Member_019caf84-9631-7361-8baa-bccf4e46479b" xlink:href="vici-20260331.xsd#vici_A5.125SeniorUnsecuredNotesDue2032Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019caf84-9631-7ec8-90ac-dd2a2b7c80a5" xlink:to="loc_vici_A5.125SeniorUnsecuredNotesDue2032Member_019caf84-9631-7361-8baa-bccf4e46479b" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_A5.750SeniorUnsecuredNotesDue2034Member_019caf84-9631-7cdd-af0f-a68924b5e3e2" xlink:href="vici-20260331.xsd#vici_A5.750SeniorUnsecuredNotesDue2034Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019caf84-9631-7ec8-90ac-dd2a2b7c80a5" xlink:to="loc_vici_A5.750SeniorUnsecuredNotesDue2034Member_019caf84-9631-7cdd-af0f-a68924b5e3e2" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_A5.625SeniorUnsecuredNotesDue2035Member_019caf84-9631-7a1f-8414-c59d2f1c8325" xlink:href="vici-20260331.xsd#vici_A5.625SeniorUnsecuredNotesDue2035Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019caf84-9631-7ec8-90ac-dd2a2b7c80a5" xlink:to="loc_vici_A5.625SeniorUnsecuredNotesDue2035Member_019caf84-9631-7a1f-8414-c59d2f1c8325" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_A5.625SeniorUnsecuredNotesDue2052Member_019caf84-9631-7945-b712-5b51a4e01850" xlink:href="vici-20260331.xsd#vici_A5.625SeniorUnsecuredNotesDue2052Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019caf84-9631-7ec8-90ac-dd2a2b7c80a5" xlink:to="loc_vici_A5.625SeniorUnsecuredNotesDue2052Member_019caf84-9631-7945-b712-5b51a4e01850" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_A6.125SeniorUnsecuredNotesDue2054Member_019caf84-9631-7892-9034-3863ebd1231f" xlink:href="vici-20260331.xsd#vici_A6.125SeniorUnsecuredNotesDue2054Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019caf84-9631-7ec8-90ac-dd2a2b7c80a5" xlink:to="loc_vici_A6.125SeniorUnsecuredNotesDue2054Member_019caf84-9631-7892-9034-3863ebd1231f" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019caf84-9631-7057-90dd-3273d38419cd" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019caf84-9631-72e6-9e1c-0b5eae7cf3dd" xlink:to="loc_srt_RangeAxis_019caf84-9631-7057-90dd-3273d38419cd" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019caf84-9631-7057-90dd-3273d38419cd_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_019caf84-9631-7057-90dd-3273d38419cd" xlink:to="loc_srt_RangeMember_019caf84-9631-7057-90dd-3273d38419cd_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019caf84-9631-754c-b67c-efc222bcfd14" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_019caf84-9631-7057-90dd-3273d38419cd" xlink:to="loc_srt_RangeMember_019caf84-9631-754c-b67c-efc222bcfd14" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_019caf84-9631-72b3-9b4b-fe44b5e77848" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019caf84-9631-754c-b67c-efc222bcfd14" xlink:to="loc_srt_MinimumMember_019caf84-9631-72b3-9b4b-fe44b5e77848" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019caf84-9631-788c-bc91-c93e5432b4e2" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019caf84-9631-754c-b67c-efc222bcfd14" xlink:to="loc_srt_MaximumMember_019caf84-9631-788c-bc91-c93e5432b4e2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_019caf84-9631-7b49-aea9-fd17c9505af9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019caf84-9631-7736-aeec-e9791de696ee" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_019caf84-9631-7b49-aea9-fd17c9505af9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_019caf84-9631-7bd6-a5f9-5eab66dd587a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentBasisSpreadOnVariableRate1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019caf84-9631-7736-aeec-e9791de696ee" xlink:to="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_019caf84-9631-7bd6-a5f9-5eab66dd587a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_DebtInstrumentInterestRateHedgeAdjustedPercentage_019caf84-9631-7b68-bad8-1542a6867df0" xlink:href="vici-20260331.xsd#vici_DebtInstrumentInterestRateHedgeAdjustedPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019caf84-9631-7736-aeec-e9791de696ee" xlink:to="loc_vici_DebtInstrumentInterestRateHedgeAdjustedPercentage_019caf84-9631-7b68-bad8-1542a6867df0" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtWeightedAverageInterestRate_019caf84-9631-73cc-bc29-7255d5f36d5a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtWeightedAverageInterestRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019caf84-9631-7736-aeec-e9791de696ee" xlink:to="loc_us-gaap_DebtWeightedAverageInterestRate_019caf84-9631-73cc-bc29-7255d5f36d5a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_019caf84-9631-745b-8f31-21adc93387f3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentFaceAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019caf84-9631-7736-aeec-e9791de696ee" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_019caf84-9631-745b-8f31-21adc93387f3" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_019caf84-9631-7fb3-8a55-04a65194a9db" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019caf84-9631-7736-aeec-e9791de696ee" xlink:to="loc_us-gaap_LongTermDebt_019caf84-9631-7fb3-8a55-04a65194a9db" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityCommitmentFeePercentage_019caf84-9631-799e-a711-258e1371b6f1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LineOfCreditFacilityCommitmentFeePercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019caf84-9631-7736-aeec-e9791de696ee" xlink:to="loc_us-gaap_LineOfCreditFacilityCommitmentFeePercentage_019caf84-9631-799e-a711-258e1371b6f1" xlink:type="arc" order="6"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://viciproperties.com/role/DebtSeniorUnsecuredDebtDetails" xlink:type="simple" xlink:href="vici-20260331.xsd#DebtSeniorUnsecuredDebtDetails"/>
  <link:definitionLink xlink:role="http://viciproperties.com/role/DebtSeniorUnsecuredDebtDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_019cd170-c42e-77fd-b64c-1359ed4a57f3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_019cd170-c42e-7b9d-a9c5-b2935546ecbb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019cd170-c42e-77fd-b64c-1359ed4a57f3" xlink:to="loc_us-gaap_DebtInstrumentTable_019cd170-c42e-7b9d-a9c5-b2935546ecbb" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019cd170-c42e-74cc-a471-e2ff2f3ba3c7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019cd170-c42e-7b9d-a9c5-b2935546ecbb" xlink:to="loc_us-gaap_DebtInstrumentAxis_019cd170-c42e-74cc-a471-e2ff2f3ba3c7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019cd170-c42e-74cc-a471-e2ff2f3ba3c7_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_019cd170-c42e-74cc-a471-e2ff2f3ba3c7" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019cd170-c42e-74cc-a471-e2ff2f3ba3c7_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019cd170-c42e-748d-a88b-5dbba3834124" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_019cd170-c42e-74cc-a471-e2ff2f3ba3c7" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019cd170-c42e-748d-a88b-5dbba3834124" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_November2019NotesSeniorUnsecuredNotesMember_019cd170-c42e-7782-a017-cb4b53fc1fd7" xlink:href="vici-20260331.xsd#vici_November2019NotesSeniorUnsecuredNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019cd170-c42e-748d-a88b-5dbba3834124" xlink:to="loc_vici_November2019NotesSeniorUnsecuredNotesMember_019cd170-c42e-7782-a017-cb4b53fc1fd7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_February2020NotesSeniorUnsecuredNotesMember_019cd170-c42e-74b0-a6d6-9ea6744a50ee" xlink:href="vici-20260331.xsd#vici_February2020NotesSeniorUnsecuredNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019cd170-c42e-748d-a88b-5dbba3834124" xlink:to="loc_vici_February2020NotesSeniorUnsecuredNotesMember_019cd170-c42e-74b0-a6d6-9ea6744a50ee" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_SeniorUnsecuredApril2022NotesMember_019cd170-c42e-73d4-87a6-6bdc81411b45" xlink:href="vici-20260331.xsd#vici_SeniorUnsecuredApril2022NotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019cd170-c42e-748d-a88b-5dbba3834124" xlink:to="loc_vici_SeniorUnsecuredApril2022NotesMember_019cd170-c42e-73d4-87a6-6bdc81411b45" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_ExchangeNotesMember_019cd170-c42e-77f5-b9fb-dbaccd4652e1" xlink:href="vici-20260331.xsd#vici_ExchangeNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019cd170-c42e-748d-a88b-5dbba3834124" xlink:to="loc_vici_ExchangeNotesMember_019cd170-c42e-77f5-b9fb-dbaccd4652e1" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_MGPOPNotesMember_019cd170-c42e-7e8b-b27a-ccbeb88760b5" xlink:href="vici-20260331.xsd#vici_MGPOPNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019cd170-c42e-748d-a88b-5dbba3834124" xlink:to="loc_vici_MGPOPNotesMember_019cd170-c42e-7e8b-b27a-ccbeb88760b5" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_SeniorUnsecuredApril2022March2024December2024AndApril2025NotesMember_019cd170-c42e-77b5-8b18-da75b53e57e2" xlink:href="vici-20260331.xsd#vici_SeniorUnsecuredApril2022March2024December2024AndApril2025NotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019cd170-c42e-748d-a88b-5dbba3834124" xlink:to="loc_vici_SeniorUnsecuredApril2022March2024December2024AndApril2025NotesMember_019cd170-c42e-77b5-8b18-da75b53e57e2" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_March2024SeniorNotesMember_019cd170-c42e-7fc3-86bd-f2148388a160" xlink:href="vici-20260331.xsd#vici_March2024SeniorNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_vici_SeniorUnsecuredApril2022March2024December2024AndApril2025NotesMember_019cd170-c42e-77b5-8b18-da75b53e57e2" xlink:to="loc_vici_March2024SeniorNotesMember_019cd170-c42e-7fc3-86bd-f2148388a160" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_December2024NotesMember_019cd170-c42e-769e-b730-dd1c7a5c256b" xlink:href="vici-20260331.xsd#vici_December2024NotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_vici_SeniorUnsecuredApril2022March2024December2024AndApril2025NotesMember_019cd170-c42e-77b5-8b18-da75b53e57e2" xlink:to="loc_vici_December2024NotesMember_019cd170-c42e-769e-b730-dd1c7a5c256b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_April2025SeniorUnsecuredNotesMember_019cd170-c42e-735e-b687-2fbf89ab345d" xlink:href="vici-20260331.xsd#vici_April2025SeniorUnsecuredNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_vici_SeniorUnsecuredApril2022March2024December2024AndApril2025NotesMember_019cd170-c42e-77b5-8b18-da75b53e57e2" xlink:to="loc_vici_April2025SeniorUnsecuredNotesMember_019cd170-c42e-735e-b687-2fbf89ab345d" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019cd170-c42e-748a-b805-fd66ba2d4837" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019cd170-c42e-7b9d-a9c5-b2935546ecbb" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019cd170-c42e-748a-b805-fd66ba2d4837" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019cd170-c42e-748a-b805-fd66ba2d4837_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019cd170-c42e-748a-b805-fd66ba2d4837" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019cd170-c42e-748a-b805-fd66ba2d4837_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019cd170-c42e-7870-9e99-3754c5b7c917" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019cd170-c42e-748a-b805-fd66ba2d4837" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019cd170-c42e-7870-9e99-3754c5b7c917" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnsecuredDebtMember_019cd170-c42e-7324-ad7b-2f175167b4e3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnsecuredDebtMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019cd170-c42e-7870-9e99-3754c5b7c917" xlink:to="loc_us-gaap_UnsecuredDebtMember_019cd170-c42e-7324-ad7b-2f175167b4e3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_019cd170-c42e-7bf9-bbd9-f3774f360558" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentFaceAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019cd170-c42e-77fd-b64c-1359ed4a57f3" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_019cd170-c42e-7bf9-bbd9-f3774f360558" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPricePercentage_019cd170-c42e-7152-b3b5-4d8edccc2ce3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentRedemptionPricePercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019cd170-c42e-77fd-b64c-1359ed4a57f3" xlink:to="loc_us-gaap_DebtInstrumentRedemptionPricePercentage_019cd170-c42e-7152-b3b5-4d8edccc2ce3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_DebtCovenantRatioOfUnencumberedAssetsToUnsecuredIndebtedness_019cd170-c42e-74a7-8fb0-d3b9d400413a" xlink:href="vici-20260331.xsd#vici_DebtCovenantRatioOfUnencumberedAssetsToUnsecuredIndebtedness"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019cd170-c42e-77fd-b64c-1359ed4a57f3" xlink:to="loc_vici_DebtCovenantRatioOfUnencumberedAssetsToUnsecuredIndebtedness_019cd170-c42e-74a7-8fb0-d3b9d400413a" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://viciproperties.com/role/DebtUnsecuredCreditFacilitiesDetails" xlink:type="simple" xlink:href="vici-20260331.xsd#DebtUnsecuredCreditFacilitiesDetails"/>
  <link:definitionLink xlink:role="http://viciproperties.com/role/DebtUnsecuredCreditFacilitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityLineItems_019caf84-96f2-7bf1-a066-f78572aa7af7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LineOfCreditFacilityLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityTable_019caf84-9631-7226-b450-48e6e5ba3cc7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LineOfCreditFacilityTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019caf84-96f2-7bf1-a066-f78572aa7af7" xlink:to="loc_us-gaap_LineOfCreditFacilityTable_019caf84-9631-7226-b450-48e6e5ba3cc7" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_019caf84-9631-72fa-888a-40830ac2ab98" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CreditFacilityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_019caf84-9631-7226-b450-48e6e5ba3cc7" xlink:to="loc_us-gaap_CreditFacilityAxis_019caf84-9631-72fa-888a-40830ac2ab98" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_019caf84-9631-72fa-888a-40830ac2ab98_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditFacilityAxis_019caf84-9631-72fa-888a-40830ac2ab98" xlink:to="loc_us-gaap_CreditFacilityDomain_019caf84-9631-72fa-888a-40830ac2ab98_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_019caf84-9631-7063-adc1-c8fcd32ca361" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditFacilityAxis_019caf84-9631-72fa-888a-40830ac2ab98" xlink:to="loc_us-gaap_CreditFacilityDomain_019caf84-9631-7063-adc1-c8fcd32ca361" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_019caf84-9631-70de-bfaf-94b96d716195" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RevolvingCreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_019caf84-9631-7063-adc1-c8fcd32ca361" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_019caf84-9631-70de-bfaf-94b96d716195" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019caf84-9631-71d5-81b8-6e9949bc46af" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_019caf84-9631-7226-b450-48e6e5ba3cc7" xlink:to="loc_srt_RangeAxis_019caf84-9631-71d5-81b8-6e9949bc46af" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019caf84-9631-71d5-81b8-6e9949bc46af_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_019caf84-9631-71d5-81b8-6e9949bc46af" xlink:to="loc_srt_RangeMember_019caf84-9631-71d5-81b8-6e9949bc46af_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019caf84-9631-7812-bc10-a69cf18f655a" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_019caf84-9631-71d5-81b8-6e9949bc46af" xlink:to="loc_srt_RangeMember_019caf84-9631-7812-bc10-a69cf18f655a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_019caf84-9631-7325-ba35-097e2236037a" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019caf84-9631-7812-bc10-a69cf18f655a" xlink:to="loc_srt_MinimumMember_019caf84-9631-7325-ba35-097e2236037a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019caf84-9631-7046-a9e5-79c443571d87" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019caf84-9631-7812-bc10-a69cf18f655a" xlink:to="loc_srt_MaximumMember_019caf84-9631-7046-a9e5-79c443571d87" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateAxis_019caf84-9631-7b0b-a367-c845d031f31d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_VariableRateAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_019caf84-9631-7226-b450-48e6e5ba3cc7" xlink:to="loc_us-gaap_VariableRateAxis_019caf84-9631-7b0b-a367-c845d031f31d" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateDomain_019caf84-9631-7b0b-a367-c845d031f31d_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_VariableRateDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_VariableRateAxis_019caf84-9631-7b0b-a367-c845d031f31d" xlink:to="loc_us-gaap_VariableRateDomain_019caf84-9631-7b0b-a367-c845d031f31d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateDomain_019caf84-9631-7cc1-acf5-867e3391bcb4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_VariableRateDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_VariableRateAxis_019caf84-9631-7b0b-a367-c845d031f31d" xlink:to="loc_us-gaap_VariableRateDomain_019caf84-9631-7cc1-acf5-867e3391bcb4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuredOvernightFinancingRateSofrMember_019caf84-9631-7572-9a12-f83a982080f0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SecuredOvernightFinancingRateSofrMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableRateDomain_019caf84-9631-7cc1-acf5-867e3391bcb4" xlink:to="loc_us-gaap_SecuredOvernightFinancingRateSofrMember_019caf84-9631-7572-9a12-f83a982080f0" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BaseRateMember_019caf84-9631-7778-ac6f-84f81665f24f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BaseRateMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableRateDomain_019caf84-9631-7cc1-acf5-867e3391bcb4" xlink:to="loc_us-gaap_BaseRateMember_019caf84-9631-7778-ac6f-84f81665f24f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_FederalReserveBankOfNewYorkRateMember_019caf84-9631-7254-ac6c-384f43e2021c" xlink:href="vici-20260331.xsd#vici_FederalReserveBankOfNewYorkRateMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableRateDomain_019caf84-9631-7cc1-acf5-867e3391bcb4" xlink:to="loc_vici_FederalReserveBankOfNewYorkRateMember_019caf84-9631-7254-ac6c-384f43e2021c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019caf84-9631-767c-84af-16c4413294b5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_019caf84-9631-7226-b450-48e6e5ba3cc7" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019caf84-9631-767c-84af-16c4413294b5" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019caf84-9631-767c-84af-16c4413294b5_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019caf84-9631-767c-84af-16c4413294b5" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019caf84-9631-767c-84af-16c4413294b5_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019caf84-9631-7c37-a72a-2b1fc5a06857" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019caf84-9631-767c-84af-16c4413294b5" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019caf84-9631-7c37-a72a-2b1fc5a06857" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnsecuredDebtMember_019caf84-96f2-7d98-8c5f-dae378c50507" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnsecuredDebtMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019caf84-9631-7c37-a72a-2b1fc5a06857" xlink:to="loc_us-gaap_UnsecuredDebtMember_019caf84-96f2-7d98-8c5f-dae378c50507" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_DebtInstrumentExtensionOptionAxis_019caf84-96f2-7bb8-a87d-4b069d281895" xlink:href="vici-20260331.xsd#vici_DebtInstrumentExtensionOptionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_019caf84-9631-7226-b450-48e6e5ba3cc7" xlink:to="loc_vici_DebtInstrumentExtensionOptionAxis_019caf84-96f2-7bb8-a87d-4b069d281895" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_DebtInstrumentExtensionOptionDomain_019caf84-96f2-7bb8-a87d-4b069d281895_default" xlink:href="vici-20260331.xsd#vici_DebtInstrumentExtensionOptionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_vici_DebtInstrumentExtensionOptionAxis_019caf84-96f2-7bb8-a87d-4b069d281895" xlink:to="loc_vici_DebtInstrumentExtensionOptionDomain_019caf84-96f2-7bb8-a87d-4b069d281895_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_DebtInstrumentExtensionOptionDomain_019caf84-96f2-7463-bdd1-ac5fb8243dde" xlink:href="vici-20260331.xsd#vici_DebtInstrumentExtensionOptionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_vici_DebtInstrumentExtensionOptionAxis_019caf84-96f2-7bb8-a87d-4b069d281895" xlink:to="loc_vici_DebtInstrumentExtensionOptionDomain_019caf84-96f2-7463-bdd1-ac5fb8243dde" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_ExtensionOption1Member_019caf84-96f2-7d44-8d15-c44a937a7b7b" xlink:href="vici-20260331.xsd#vici_ExtensionOption1Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_vici_DebtInstrumentExtensionOptionDomain_019caf84-96f2-7463-bdd1-ac5fb8243dde" xlink:to="loc_vici_ExtensionOption1Member_019caf84-96f2-7d44-8d15-c44a937a7b7b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_ExtensionOption2Member_019caf84-96f2-7692-9180-5ed447ab8240" xlink:href="vici-20260331.xsd#vici_ExtensionOption2Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_vici_DebtInstrumentExtensionOptionDomain_019caf84-96f2-7463-bdd1-ac5fb8243dde" xlink:to="loc_vici_ExtensionOption2Member_019caf84-96f2-7692-9180-5ed447ab8240" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_019caf84-96f2-7c61-8c4e-7d7c12900697" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019caf84-96f2-7bf1-a066-f78572aa7af7" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_019caf84-96f2-7c61-8c4e-7d7c12900697" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LineOfCreditFacilityNumberOfExtensionOptions_019caf84-96f2-7d14-89ff-afe3d0f22c34" xlink:href="vici-20260331.xsd#vici_LineOfCreditFacilityNumberOfExtensionOptions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019caf84-96f2-7bf1-a066-f78572aa7af7" xlink:to="loc_vici_LineOfCreditFacilityNumberOfExtensionOptions_019caf84-96f2-7d14-89ff-afe3d0f22c34" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LineOfCreditFacilityExtensionTerm_019caf84-96f2-7421-9d97-8797ec749cf0" xlink:href="vici-20260331.xsd#vici_LineOfCreditFacilityExtensionTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019caf84-96f2-7bf1-a066-f78572aa7af7" xlink:to="loc_vici_LineOfCreditFacilityExtensionTerm_019caf84-96f2-7421-9d97-8797ec749cf0" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LineOfCreditFacilityExtensionFeePercentage_019caf84-96f2-7690-82fb-6a3cd17b84bb" xlink:href="vici-20260331.xsd#vici_LineOfCreditFacilityExtensionFeePercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019caf84-96f2-7bf1-a066-f78572aa7af7" xlink:to="loc_vici_LineOfCreditFacilityExtensionFeePercentage_019caf84-96f2-7690-82fb-6a3cd17b84bb" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LineOfCreditFacilityAccordionFeatureIncreaseLimit_019caf84-96f2-7a83-940e-c1fbfd51afd2" xlink:href="vici-20260331.xsd#vici_LineOfCreditFacilityAccordionFeatureIncreaseLimit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019caf84-96f2-7bf1-a066-f78572aa7af7" xlink:to="loc_vici_LineOfCreditFacilityAccordionFeatureIncreaseLimit_019caf84-96f2-7a83-940e-c1fbfd51afd2" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LineOfCreditFacilityAdditionalTranchesOfTermLoansIncreaseLimit_019caf84-96f2-7348-9f7e-ee7f357c3df7" xlink:href="vici-20260331.xsd#vici_LineOfCreditFacilityAdditionalTranchesOfTermLoansIncreaseLimit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019caf84-96f2-7bf1-a066-f78572aa7af7" xlink:to="loc_vici_LineOfCreditFacilityAdditionalTranchesOfTermLoansIncreaseLimit_019caf84-96f2-7348-9f7e-ee7f357c3df7" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_019caf84-96f2-707a-bfca-00720d84f8a3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentBasisSpreadOnVariableRate1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019caf84-96f2-7bf1-a066-f78572aa7af7" xlink:to="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_019caf84-96f2-707a-bfca-00720d84f8a3" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LineOfCreditFacilityFacilityFeePercentage_019caf84-96f2-7f0f-ac3a-e08d86603d88" xlink:href="vici-20260331.xsd#vici_LineOfCreditFacilityFacilityFeePercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019caf84-96f2-7bf1-a066-f78572aa7af7" xlink:to="loc_vici_LineOfCreditFacilityFacilityFeePercentage_019caf84-96f2-7f0f-ac3a-e08d86603d88" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCredit_019caf84-96f2-7c82-93c0-bb5cdc83760e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LineOfCredit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019caf84-96f2-7bf1-a066-f78572aa7af7" xlink:to="loc_us-gaap_LineOfCredit_019caf84-96f2-7c82-93c0-bb5cdc83760e" xlink:type="arc" order="8"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://viciproperties.com/role/DebtMGMGrandMandalayBayCMBSDebtDetails" xlink:type="simple" xlink:href="vici-20260331.xsd#DebtMGMGrandMandalayBayCMBSDebtDetails"/>
  <link:definitionLink xlink:role="http://viciproperties.com/role/DebtMGMGrandMandalayBayCMBSDebtDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_019cd171-ab8b-719e-aa45-8742e0fbb1bd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_019cd171-ab8b-7287-92bc-08635b90da42" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019cd171-ab8b-719e-aa45-8742e0fbb1bd" xlink:to="loc_us-gaap_DebtInstrumentTable_019cd171-ab8b-7287-92bc-08635b90da42" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019cd171-ab8b-774a-a685-238bf3d88d1b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019cd171-ab8b-7287-92bc-08635b90da42" xlink:to="loc_us-gaap_DebtInstrumentAxis_019cd171-ab8b-774a-a685-238bf3d88d1b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019cd171-ab8b-774a-a685-238bf3d88d1b_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_019cd171-ab8b-774a-a685-238bf3d88d1b" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019cd171-ab8b-774a-a685-238bf3d88d1b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019cd171-ab8b-70ab-a582-5015c00bf7aa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_019cd171-ab8b-774a-a685-238bf3d88d1b" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019cd171-ab8b-70ab-a582-5015c00bf7aa" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_MGMGrandMandalayBayNoteDue2032Member_019cd171-ab8b-7d94-9812-36753e76c51b" xlink:href="vici-20260331.xsd#vici_MGMGrandMandalayBayNoteDue2032Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019cd171-ab8b-70ab-a582-5015c00bf7aa" xlink:to="loc_vici_MGMGrandMandalayBayNoteDue2032Member_019cd171-ab8b-7d94-9812-36753e76c51b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019d2f71-8441-7a4e-9ed6-54b74a20e644" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019cd171-ab8b-7287-92bc-08635b90da42" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019d2f71-8441-7a4e-9ed6-54b74a20e644" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019d2f71-8441-7a4e-9ed6-54b74a20e644_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019d2f71-8441-7a4e-9ed6-54b74a20e644" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019d2f71-8441-7a4e-9ed6-54b74a20e644_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019d2f71-8441-7075-9796-5b9a0ead74a7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019d2f71-8441-7a4e-9ed6-54b74a20e644" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019d2f71-8441-7075-9796-5b9a0ead74a7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_019d2f71-afff-791b-afb2-06743865b8a4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SeniorNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019d2f71-8441-7075-9796-5b9a0ead74a7" xlink:to="loc_us-gaap_SeniorNotesMember_019d2f71-afff-791b-afb2-06743865b8a4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_019d2f92-2fb1-7bfa-80fa-7e941b2974cb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019cd171-ab8b-719e-aa45-8742e0fbb1bd" xlink:to="loc_us-gaap_LongTermDebt_019d2f92-2fb1-7bfa-80fa-7e941b2974cb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_019cd171-ab8b-7e0c-8fec-eb06bf3c8910" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019cd171-ab8b-719e-aa45-8742e0fbb1bd" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_019cd171-ab8b-7e0c-8fec-eb06bf3c8910" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://viciproperties.com/role/DerivativesScheduleofDerivativesDetails" xlink:type="simple" xlink:href="vici-20260331.xsd#DerivativesScheduleofDerivativesDetails"/>
  <link:definitionLink xlink:role="http://viciproperties.com/role/DerivativesScheduleofDerivativesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLineItems_019caf84-96f2-74f1-ab6b-3d222d5ca5ea" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeTable_019caf84-96f2-7202-af0a-52de83606542" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DerivativeLineItems_019caf84-96f2-74f1-ab6b-3d222d5ca5ea" xlink:to="loc_us-gaap_DerivativeTable_019caf84-96f2-7202-af0a-52de83606542" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_019caf84-96f2-78ba-a4d9-d3d8b6771e85" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeInstrumentRiskAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_019caf84-96f2-7202-af0a-52de83606542" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_019caf84-96f2-78ba-a4d9-d3d8b6771e85" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_019caf84-96f2-78ba-a4d9-d3d8b6771e85_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_019caf84-96f2-78ba-a4d9-d3d8b6771e85" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_019caf84-96f2-78ba-a4d9-d3d8b6771e85_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_019caf84-96f2-71f6-bbea-6262cdec35ae" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_019caf84-96f2-78ba-a4d9-d3d8b6771e85" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_019caf84-96f2-71f6-bbea-6262cdec35ae" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_ForwardStartingInterestRateSwapsMember_019caf84-96f2-76dc-84d2-a171b912b107" xlink:href="vici-20260331.xsd#vici_ForwardStartingInterestRateSwapsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019caf84-96f2-71f6-bbea-6262cdec35ae" xlink:to="loc_vici_ForwardStartingInterestRateSwapsMember_019caf84-96f2-76dc-84d2-a171b912b107" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_ForwardStartingInterestRateSwapApril2025NotesMember_019caf84-96f2-71c4-8b32-13608965957c" xlink:href="vici-20260331.xsd#vici_ForwardStartingInterestRateSwapApril2025NotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019caf84-96f2-71f6-bbea-6262cdec35ae" xlink:to="loc_vici_ForwardStartingInterestRateSwapApril2025NotesMember_019caf84-96f2-71c4-8b32-13608965957c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_TreasuryLockApril2025NotesMember_019caf84-96f2-7706-83ea-d33d67f30fef" xlink:href="vici-20260331.xsd#vici_TreasuryLockApril2025NotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019caf84-96f2-71f6-bbea-6262cdec35ae" xlink:to="loc_vici_TreasuryLockApril2025NotesMember_019caf84-96f2-7706-83ea-d33d67f30fef" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_ForwardStartingInterestRateSwapDecember2024NotesMember_019caf84-96f2-70c7-9190-9c54ed2ab8b4" xlink:href="vici-20260331.xsd#vici_ForwardStartingInterestRateSwapDecember2024NotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019caf84-96f2-71f6-bbea-6262cdec35ae" xlink:to="loc_vici_ForwardStartingInterestRateSwapDecember2024NotesMember_019caf84-96f2-70c7-9190-9c54ed2ab8b4" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_TreasuryLockDecember2024NotesMember_019caf84-96f2-711c-9552-ff51c9a9b4ec" xlink:href="vici-20260331.xsd#vici_TreasuryLockDecember2024NotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019caf84-96f2-71f6-bbea-6262cdec35ae" xlink:to="loc_vici_TreasuryLockDecember2024NotesMember_019caf84-96f2-711c-9552-ff51c9a9b4ec" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_ForwardStartingInterestRateSwapMarch2024NotesMember_019caf84-96f2-7116-aaa3-12d5fd075dc7" xlink:href="vici-20260331.xsd#vici_ForwardStartingInterestRateSwapMarch2024NotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019caf84-96f2-71f6-bbea-6262cdec35ae" xlink:to="loc_vici_ForwardStartingInterestRateSwapMarch2024NotesMember_019caf84-96f2-7116-aaa3-12d5fd075dc7" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_ForwardStartingInterestRateSwapApril2022NotesMember_019caf84-96f2-79a7-82d1-b74fe421d449" xlink:href="vici-20260331.xsd#vici_ForwardStartingInterestRateSwapApril2022NotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019caf84-96f2-71f6-bbea-6262cdec35ae" xlink:to="loc_vici_ForwardStartingInterestRateSwapApril2022NotesMember_019caf84-96f2-79a7-82d1-b74fe421d449" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_TreasuryLockApril2022NotesMember_019caf84-96f2-7252-b36a-91ccee8d74d9" xlink:href="vici-20260331.xsd#vici_TreasuryLockApril2022NotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019caf84-96f2-71f6-bbea-6262cdec35ae" xlink:to="loc_vici_TreasuryLockApril2022NotesMember_019caf84-96f2-7252-b36a-91ccee8d74d9" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_019caf84-96f2-7a09-a7bf-cfe6d3524cd9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_019caf84-96f2-7202-af0a-52de83606542" xlink:to="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_019caf84-96f2-7a09-a7bf-cfe6d3524cd9" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingRelationshipDomain_019caf84-96f2-7a09-a7bf-cfe6d3524cd9_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_HedgingRelationshipDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_019caf84-96f2-7a09-a7bf-cfe6d3524cd9" xlink:to="loc_us-gaap_HedgingRelationshipDomain_019caf84-96f2-7a09-a7bf-cfe6d3524cd9_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingRelationshipDomain_019caf84-96f2-7f69-94de-0a2d7d80aa2c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_HedgingRelationshipDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_019caf84-96f2-7a09-a7bf-cfe6d3524cd9" xlink:to="loc_us-gaap_HedgingRelationshipDomain_019caf84-96f2-7f69-94de-0a2d7d80aa2c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashFlowHedgingMember_019caf84-96f2-77c5-a1c1-135fdccac131" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashFlowHedgingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingRelationshipDomain_019caf84-96f2-7f69-94de-0a2d7d80aa2c" xlink:to="loc_us-gaap_CashFlowHedgingMember_019caf84-96f2-77c5-a1c1-135fdccac131" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeNumberOfInstrumentsHeld_019caf84-96f2-77fa-8f0d-28b808f2c08e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeNumberOfInstrumentsHeld"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_019caf84-96f2-74f1-ab6b-3d222d5ca5ea" xlink:to="loc_us-gaap_DerivativeNumberOfInstrumentsHeld_019caf84-96f2-77fa-8f0d-28b808f2c08e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeFixedInterestRate_019caf84-96f2-7fda-9778-0b9824b3e444" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeFixedInterestRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_019caf84-96f2-74f1-ab6b-3d222d5ca5ea" xlink:to="loc_us-gaap_DerivativeFixedInterestRate_019caf84-96f2-7fda-9778-0b9824b3e444" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeNotionalAmount_019caf84-96f2-7d07-82e4-3f1d9985d863" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeNotionalAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_019caf84-96f2-74f1-ab6b-3d222d5ca5ea" xlink:to="loc_us-gaap_DerivativeNotionalAmount_019caf84-96f2-7d07-82e4-3f1d9985d863" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_ProceedsFromDerivativeInstrumentOperatingActivity_019caf84-96f2-7979-b817-58f37c3e569f" xlink:href="vici-20260331.xsd#vici_ProceedsFromDerivativeInstrumentOperatingActivity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_019caf84-96f2-74f1-ab6b-3d222d5ca5ea" xlink:to="loc_vici_ProceedsFromDerivativeInstrumentOperatingActivity_019caf84-96f2-7979-b817-58f37c3e569f" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://viciproperties.com/role/DerivativesScheduleofDerivativesonIncomeStatementDetails" xlink:type="simple" xlink:href="vici-20260331.xsd#DerivativesScheduleofDerivativesonIncomeStatementDetails"/>
  <link:definitionLink xlink:role="http://viciproperties.com/role/DerivativesScheduleofDerivativesonIncomeStatementDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLineItems_019caf84-96f2-77ff-a543-ef6f30e77c0e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeTable_019caf84-96f2-7dd8-a250-36215ab44653" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DerivativeLineItems_019caf84-96f2-77ff-a543-ef6f30e77c0e" xlink:to="loc_us-gaap_DerivativeTable_019caf84-96f2-7dd8-a250-36215ab44653" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_019caf84-96f2-7364-8236-c18aab9f87bc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeInstrumentRiskAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_019caf84-96f2-7dd8-a250-36215ab44653" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_019caf84-96f2-7364-8236-c18aab9f87bc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_019caf84-96f2-7364-8236-c18aab9f87bc_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_019caf84-96f2-7364-8236-c18aab9f87bc" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_019caf84-96f2-7364-8236-c18aab9f87bc_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_019caf84-96f2-76a4-8c65-5fcc359fdd0f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_019caf84-96f2-7364-8236-c18aab9f87bc" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_019caf84-96f2-76a4-8c65-5fcc359fdd0f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_ForwardStartingInterestRateSwapsMember_019caf84-96f2-7573-a42a-8e125794c522" xlink:href="vici-20260331.xsd#vici_ForwardStartingInterestRateSwapsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019caf84-96f2-76a4-8c65-5fcc359fdd0f" xlink:to="loc_vici_ForwardStartingInterestRateSwapsMember_019caf84-96f2-7573-a42a-8e125794c522" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax_019caf84-96f2-7982-ac2f-5f1d03474f5b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_019caf84-96f2-77ff-a543-ef6f30e77c0e" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax_019caf84-96f2-7982-ac2f-5f1d03474f5b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax_019caf84-96f2-7b87-8cab-928629dbe808" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_019caf84-96f2-77ff-a543-ef6f30e77c0e" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax_019caf84-96f2-7b87-8cab-928629dbe808" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://viciproperties.com/role/DerivativesNarrativeDetails" xlink:type="simple" xlink:href="vici-20260331.xsd#DerivativesNarrativeDetails"/>
  <link:definitionLink xlink:role="http://viciproperties.com/role/DerivativesNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLineItems_019caf84-96f2-7c9c-91c1-0ee57d3b8874" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeTable_019caf84-96f2-72da-a608-601513a3f332" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DerivativeLineItems_019caf84-96f2-7c9c-91c1-0ee57d3b8874" xlink:to="loc_us-gaap_DerivativeTable_019caf84-96f2-72da-a608-601513a3f332" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_019caf84-96f2-799d-9f74-2b5ef0ad1e5d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CreditFacilityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_019caf84-96f2-72da-a608-601513a3f332" xlink:to="loc_us-gaap_CreditFacilityAxis_019caf84-96f2-799d-9f74-2b5ef0ad1e5d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_019caf84-96f2-799d-9f74-2b5ef0ad1e5d_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditFacilityAxis_019caf84-96f2-799d-9f74-2b5ef0ad1e5d" xlink:to="loc_us-gaap_CreditFacilityDomain_019caf84-96f2-799d-9f74-2b5ef0ad1e5d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_019caf84-96f2-74a6-b9d1-22abb3970ee5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditFacilityAxis_019caf84-96f2-799d-9f74-2b5ef0ad1e5d" xlink:to="loc_us-gaap_CreditFacilityDomain_019caf84-96f2-74a6-b9d1-22abb3970ee5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_019caf84-96f2-72bd-933f-d38193f54643" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RevolvingCreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_019caf84-96f2-74a6-b9d1-22abb3970ee5" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_019caf84-96f2-72bd-933f-d38193f54643" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019caf84-96f2-7a53-91f6-0a487966ce3b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_019caf84-96f2-72da-a608-601513a3f332" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019caf84-96f2-7a53-91f6-0a487966ce3b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019caf84-96f2-7a53-91f6-0a487966ce3b_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019caf84-96f2-7a53-91f6-0a487966ce3b" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019caf84-96f2-7a53-91f6-0a487966ce3b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019caf84-96f2-7e52-8189-697ad1624f5d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019caf84-96f2-7a53-91f6-0a487966ce3b" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019caf84-96f2-7e52-8189-697ad1624f5d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnsecuredDebtMember_019caf84-96f2-7321-aa4f-72ab2b60d2b2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnsecuredDebtMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019caf84-96f2-7e52-8189-697ad1624f5d" xlink:to="loc_us-gaap_UnsecuredDebtMember_019caf84-96f2-7321-aa4f-72ab2b60d2b2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_019caf84-96f2-7136-8b69-8a87faf54b34" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_019caf84-96f2-72da-a608-601513a3f332" xlink:to="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_019caf84-96f2-7136-8b69-8a87faf54b34" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingRelationshipDomain_019caf84-96f2-7136-8b69-8a87faf54b34_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_HedgingRelationshipDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_019caf84-96f2-7136-8b69-8a87faf54b34" xlink:to="loc_us-gaap_HedgingRelationshipDomain_019caf84-96f2-7136-8b69-8a87faf54b34_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingRelationshipDomain_019caf84-96f2-76ca-86c2-bc4f20181155" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_HedgingRelationshipDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_019caf84-96f2-7136-8b69-8a87faf54b34" xlink:to="loc_us-gaap_HedgingRelationshipDomain_019caf84-96f2-76ca-86c2-bc4f20181155" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetInvestmentHedgingMember_019caf84-96f2-7c67-8fde-e083d8736df6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetInvestmentHedgingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingRelationshipDomain_019caf84-96f2-76ca-86c2-bc4f20181155" xlink:to="loc_us-gaap_NetInvestmentHedgingMember_019caf84-96f2-7c67-8fde-e083d8736df6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCredit_019caf84-96f2-7a89-bd9a-330b923d269a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LineOfCredit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_019caf84-96f2-7c9c-91c1-0ee57d3b8874" xlink:to="loc_us-gaap_LineOfCredit_019caf84-96f2-7a89-bd9a-330b923d269a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_019caf84-96f2-7842-9262-e67e50185d00" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_019caf84-96f2-7c9c-91c1-0ee57d3b8874" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_019caf84-96f2-7842-9262-e67e50185d00" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://viciproperties.com/role/FairValueScheduleofFairValueNetDerivativeMeasuredonRecurringBasisUnobservableInputReconciliationDetails" xlink:type="simple" xlink:href="vici-20260331.xsd#FairValueScheduleofFairValueNetDerivativeMeasuredonRecurringBasisUnobservableInputReconciliationDetails"/>
  <link:definitionLink xlink:role="http://viciproperties.com/role/FairValueScheduleofFairValueNetDerivativeMeasuredonRecurringBasisUnobservableInputReconciliationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019caf84-96f2-7a81-a01e-56446c0dc3fe" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019caf84-96f2-7435-9da1-04d8ab8fe1cc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019caf84-96f2-7a81-a01e-56446c0dc3fe" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019caf84-96f2-7435-9da1-04d8ab8fe1cc" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_019caf84-96f2-7c67-b703-f969bac2e8d2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeInstrumentRiskAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019caf84-96f2-7435-9da1-04d8ab8fe1cc" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_019caf84-96f2-7c67-b703-f969bac2e8d2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_019caf84-96f2-7c67-b703-f969bac2e8d2_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_019caf84-96f2-7c67-b703-f969bac2e8d2" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_019caf84-96f2-7c67-b703-f969bac2e8d2_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_019caf84-96f2-73ee-9dcc-f3daae047350" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_019caf84-96f2-7c67-b703-f969bac2e8d2" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_019caf84-96f2-73ee-9dcc-f3daae047350" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestRateSwapMember_019caf84-96f2-79a3-9e7f-094879cb8b6e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestRateSwapMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_019caf84-96f2-73ee-9dcc-f3daae047350" xlink:to="loc_us-gaap_InterestRateSwapMember_019caf84-96f2-79a3-9e7f-094879cb8b6e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementBasisAxis_019caf84-96f2-7f65-8588-dafa614b70ae" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueByMeasurementBasisAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019caf84-96f2-7435-9da1-04d8ab8fe1cc" xlink:to="loc_us-gaap_FairValueByMeasurementBasisAxis_019caf84-96f2-7f65-8588-dafa614b70ae" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_019caf84-96f2-7f65-8588-dafa614b70ae_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PortionAtFairValueFairValueDisclosureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByMeasurementBasisAxis_019caf84-96f2-7f65-8588-dafa614b70ae" xlink:to="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_019caf84-96f2-7f65-8588-dafa614b70ae_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosureItemAmountsDomain_019caf84-96f2-742a-b8bb-4e1f4dbc1f3c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueDisclosureItemAmountsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByMeasurementBasisAxis_019caf84-96f2-7f65-8588-dafa614b70ae" xlink:to="loc_us-gaap_FairValueDisclosureItemAmountsDomain_019caf84-96f2-742a-b8bb-4e1f4dbc1f3c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_019caf84-96f2-7223-9d58-33fed88c3d31" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PortionAtFairValueFairValueDisclosureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueDisclosureItemAmountsDomain_019caf84-96f2-742a-b8bb-4e1f4dbc1f3c" xlink:to="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_019caf84-96f2-7223-9d58-33fed88c3d31" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CarryingReportedAmountFairValueDisclosureMember_019caf84-96f2-7f32-804a-72885df4af3d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CarryingReportedAmountFairValueDisclosureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_019caf84-96f2-7223-9d58-33fed88c3d31" xlink:to="loc_us-gaap_CarryingReportedAmountFairValueDisclosureMember_019caf84-96f2-7f32-804a-72885df4af3d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EstimateOfFairValueFairValueDisclosureMember_019caf84-96f2-71d9-b8f7-dcbbf0543d92" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EstimateOfFairValueFairValueDisclosureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_019caf84-96f2-7223-9d58-33fed88c3d31" xlink:to="loc_us-gaap_EstimateOfFairValueFairValueDisclosureMember_019caf84-96f2-71d9-b8f7-dcbbf0543d92" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019caf84-96f2-7a52-886f-5774e534700f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019caf84-96f2-7435-9da1-04d8ab8fe1cc" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019caf84-96f2-7a52-886f-5774e534700f" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019caf84-96f2-7a52-886f-5774e534700f_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019caf84-96f2-7a52-886f-5774e534700f" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019caf84-96f2-7a52-886f-5774e534700f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019caf84-96f2-7fdc-b551-54eec99a8264" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019caf84-96f2-7a52-886f-5774e534700f" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019caf84-96f2-7fdc-b551-54eec99a8264" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_019caf84-96f2-702e-ac8e-43d5c644ceca" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueInputsLevel1Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019caf84-96f2-7fdc-b551-54eec99a8264" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_019caf84-96f2-702e-ac8e-43d5c644ceca" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_019caf84-96f2-7e1e-bc85-2d404f84bc9a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueInputsLevel2Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019caf84-96f2-7fdc-b551-54eec99a8264" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_019caf84-96f2-7e1e-bc85-2d404f84bc9a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_019caf84-96f2-7b94-a891-a50724dff356" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueInputsLevel3Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019caf84-96f2-7fdc-b551-54eec99a8264" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_019caf84-96f2-7b94-a891-a50724dff356" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsAbstract_019caf84-96f2-7c1a-ae2f-254fec9d376b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetsAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019caf84-96f2-7a81-a01e-56446c0dc3fe" xlink:to="loc_us-gaap_AssetsAbstract_019caf84-96f2-7c1a-ae2f-254fec9d376b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeAssets_019caf84-96f2-7f24-9945-7fa42a14635d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019caf84-96f2-7c1a-ae2f-254fec9d376b" xlink:to="loc_us-gaap_DerivativeAssets_019caf84-96f2-7f24-9945-7fa42a14635d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermInvestments_019cdc42-339f-7ce5-92b1-35497598f26c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShortTermInvestments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019caf84-96f2-7c1a-ae2f-254fec9d376b" xlink:to="loc_us-gaap_ShortTermInvestments_019cdc42-339f-7ce5-92b1-35497598f26c" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://viciproperties.com/role/FairValueScheduleOfEstimatedFairValuesDetails" xlink:type="simple" xlink:href="vici-20260331.xsd#FairValueScheduleOfEstimatedFairValuesDetails"/>
  <link:definitionLink xlink:role="http://viciproperties.com/role/FairValueScheduleOfEstimatedFairValuesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_019caf84-96f2-73f7-8333-d5f82c653c2c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByBalanceSheetGroupingTable_019caf84-96f2-761b-86ba-b2d4d64f26ff" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueByBalanceSheetGroupingTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_019caf84-96f2-73f7-8333-d5f82c653c2c" xlink:to="loc_us-gaap_FairValueByBalanceSheetGroupingTable_019caf84-96f2-761b-86ba-b2d4d64f26ff" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019caf84-96f2-739e-ad71-941ab704f74f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueByBalanceSheetGroupingTable_019caf84-96f2-761b-86ba-b2d4d64f26ff" xlink:to="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019caf84-96f2-739e-ad71-941ab704f74f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivableTypeDomain_019caf84-96f2-739e-ad71-941ab704f74f_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ReceivableTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019caf84-96f2-739e-ad71-941ab704f74f" xlink:to="loc_us-gaap_ReceivableTypeDomain_019caf84-96f2-739e-ad71-941ab704f74f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivableTypeDomain_019caf84-96f2-7439-be46-1242b4a66224" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ReceivableTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019caf84-96f2-739e-ad71-941ab704f74f" xlink:to="loc_us-gaap_ReceivableTypeDomain_019caf84-96f2-7439-be46-1242b4a66224" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LeaseFinancingReceivableMember_019caf84-96f2-7007-86d8-396fe97f2d34" xlink:href="vici-20260331.xsd#vici_LeaseFinancingReceivableMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReceivableTypeDomain_019caf84-96f2-7439-be46-1242b4a66224" xlink:to="loc_vici_LeaseFinancingReceivableMember_019caf84-96f2-7007-86d8-396fe97f2d34" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LoansReceivablesAndSecuritiesMember_019caf84-96f2-765b-b656-94af5a51eeca" xlink:href="vici-20260331.xsd#vici_LoansReceivablesAndSecuritiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReceivableTypeDomain_019caf84-96f2-7439-be46-1242b4a66224" xlink:to="loc_vici_LoansReceivablesAndSecuritiesMember_019caf84-96f2-765b-b656-94af5a51eeca" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementBasisAxis_019caf84-96f2-756b-9261-5379befe469e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueByMeasurementBasisAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueByBalanceSheetGroupingTable_019caf84-96f2-761b-86ba-b2d4d64f26ff" xlink:to="loc_us-gaap_FairValueByMeasurementBasisAxis_019caf84-96f2-756b-9261-5379befe469e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_019caf84-96f2-756b-9261-5379befe469e_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PortionAtFairValueFairValueDisclosureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByMeasurementBasisAxis_019caf84-96f2-756b-9261-5379befe469e" xlink:to="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_019caf84-96f2-756b-9261-5379befe469e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosureItemAmountsDomain_019caf84-96f2-72d6-ae51-fd96f8ae75a9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueDisclosureItemAmountsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByMeasurementBasisAxis_019caf84-96f2-756b-9261-5379befe469e" xlink:to="loc_us-gaap_FairValueDisclosureItemAmountsDomain_019caf84-96f2-72d6-ae51-fd96f8ae75a9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_019caf84-96f2-7a99-a1e1-31c104f45787" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PortionAtFairValueFairValueDisclosureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueDisclosureItemAmountsDomain_019caf84-96f2-72d6-ae51-fd96f8ae75a9" xlink:to="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_019caf84-96f2-7a99-a1e1-31c104f45787" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CarryingReportedAmountFairValueDisclosureMember_019caf84-96f2-71d3-89a2-f3ad29051095" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CarryingReportedAmountFairValueDisclosureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_019caf84-96f2-7a99-a1e1-31c104f45787" xlink:to="loc_us-gaap_CarryingReportedAmountFairValueDisclosureMember_019caf84-96f2-71d3-89a2-f3ad29051095" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EstimateOfFairValueFairValueDisclosureMember_019caf84-96f2-75ea-9385-257b45a9ade7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EstimateOfFairValueFairValueDisclosureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_019caf84-96f2-7a99-a1e1-31c104f45787" xlink:to="loc_us-gaap_EstimateOfFairValueFairValueDisclosureMember_019caf84-96f2-75ea-9385-257b45a9ade7" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019caf84-96f2-7f71-b89b-de18b287bf17" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueByBalanceSheetGroupingTable_019caf84-96f2-761b-86ba-b2d4d64f26ff" xlink:to="loc_us-gaap_DebtInstrumentAxis_019caf84-96f2-7f71-b89b-de18b287bf17" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019caf84-96f2-7f71-b89b-de18b287bf17_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_019caf84-96f2-7f71-b89b-de18b287bf17" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019caf84-96f2-7f71-b89b-de18b287bf17_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019caf84-96f2-7475-8dc5-6de93ce96701" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_019caf84-96f2-7f71-b89b-de18b287bf17" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019caf84-96f2-7475-8dc5-6de93ce96701" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_019caf84-96f2-7c3b-8384-37215b1106ca" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RevolvingCreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019caf84-96f2-7475-8dc5-6de93ce96701" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_019caf84-96f2-7c3b-8384-37215b1106ca" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_MGMGrandMandalayBayCMBSDebtMember_019caf84-96f2-7feb-92ab-63cee24b38da" xlink:href="vici-20260331.xsd#vici_MGMGrandMandalayBayCMBSDebtMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019caf84-96f2-7475-8dc5-6de93ce96701" xlink:to="loc_vici_MGMGrandMandalayBayCMBSDebtMember_019caf84-96f2-7feb-92ab-63cee24b38da" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnsecuredDebtMember_019caf84-96f2-784d-99cc-6ee052063575" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnsecuredDebtMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019caf84-96f2-7475-8dc5-6de93ce96701" xlink:to="loc_us-gaap_UnsecuredDebtMember_019caf84-96f2-784d-99cc-6ee052063575" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsFairValueDisclosureAbstract_019caf84-96f2-746f-af3c-67b1578b19e2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetsFairValueDisclosureAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_019caf84-96f2-73f7-8333-d5f82c653c2c" xlink:to="loc_us-gaap_AssetsFairValueDisclosureAbstract_019caf84-96f2-746f-af3c-67b1578b19e2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LoansReceivableFairValueDisclosure_019caf84-96f2-77bb-880b-bc189e515b9b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LoansReceivableFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsFairValueDisclosureAbstract_019caf84-96f2-746f-af3c-67b1578b19e2" xlink:to="loc_us-gaap_LoansReceivableFairValueDisclosure_019caf84-96f2-77bb-880b-bc189e515b9b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_019caf84-96f2-73ca-9a0b-baa36ac57429" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashAndCashEquivalentsFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsFairValueDisclosureAbstract_019caf84-96f2-746f-af3c-67b1578b19e2" xlink:to="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_019caf84-96f2-73ca-9a0b-baa36ac57429" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialLiabilitiesFairValueDisclosureAbstract_019caf84-96f2-7844-a285-be493f8d4dc5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancialLiabilitiesFairValueDisclosureAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_019caf84-96f2-73f7-8333-d5f82c653c2c" xlink:to="loc_us-gaap_FinancialLiabilitiesFairValueDisclosureAbstract_019caf84-96f2-7844-a285-be493f8d4dc5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFairValue_019caf84-96f2-70a0-83da-b493d8471949" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancialLiabilitiesFairValueDisclosureAbstract_019caf84-96f2-7844-a285-be493f8d4dc5" xlink:to="loc_us-gaap_DebtInstrumentFairValue_019caf84-96f2-70a0-83da-b493d8471949" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://viciproperties.com/role/CommitmentsandContingentLiabilitiesNarrativeDetails" xlink:type="simple" xlink:href="vici-20260331.xsd#CommitmentsandContingentLiabilitiesNarrativeDetails"/>
  <link:definitionLink xlink:role="http://viciproperties.com/role/CommitmentsandContingentLiabilitiesNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingenciesLineItems_019caf84-96f2-7895-953c-87b5d88bf833" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LossContingenciesLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingenciesTable_019caf84-96f2-733e-a2b7-6c5dc441fd56" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LossContingenciesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LossContingenciesLineItems_019caf84-96f2-7895-953c-87b5d88bf833" xlink:to="loc_us-gaap_LossContingenciesTable_019caf84-96f2-733e-a2b7-6c5dc441fd56" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_019caf84-96f2-707c-9469-34464b9198c8" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LossContingenciesTable_019caf84-96f2-733e-a2b7-6c5dc441fd56" xlink:to="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_019caf84-96f2-707c-9469-34464b9198c8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_019caf84-96f2-707c-9469-34464b9198c8_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_019caf84-96f2-707c-9469-34464b9198c8" xlink:to="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_019caf84-96f2-707c-9469-34464b9198c8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_019caf84-96f2-7762-9ebb-05e5970af9d2" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_019caf84-96f2-707c-9469-34464b9198c8" xlink:to="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_019caf84-96f2-7762-9ebb-05e5970af9d2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_CascataGolfCourseMember_019caf84-96f2-7f4f-96f7-b6af226614fb" xlink:href="vici-20260331.xsd#vici_CascataGolfCourseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_019caf84-96f2-7762-9ebb-05e5970af9d2" xlink:to="loc_vici_CascataGolfCourseMember_019caf84-96f2-7f4f-96f7-b6af226614fb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_CorporateHeadquartersMember_019caf84-96f2-7fe7-8622-4cfec717e31e" xlink:href="vici-20260331.xsd#vici_CorporateHeadquartersMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_019caf84-96f2-7762-9ebb-05e5970af9d2" xlink:to="loc_vici_CorporateHeadquartersMember_019caf84-96f2-7fe7-8622-4cfec717e31e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LesseeOperatingLeaseNumberOfExtensionOptions_019caf84-96f2-74b8-8035-7864d0c78aeb" xlink:href="vici-20260331.xsd#vici_LesseeOperatingLeaseNumberOfExtensionOptions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_019caf84-96f2-7895-953c-87b5d88bf833" xlink:to="loc_vici_LesseeOperatingLeaseNumberOfExtensionOptions_019caf84-96f2-74b8-8035-7864d0c78aeb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseRenewalTerm_019caf84-96f2-7ba5-8641-7002d54ba988" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseRenewalTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_019caf84-96f2-7895-953c-87b5d88bf833" xlink:to="loc_us-gaap_LesseeOperatingLeaseRenewalTerm_019caf84-96f2-7ba5-8641-7002d54ba988" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://viciproperties.com/role/CommitmentsandContingentLiabilitiesScheduleofAssetsandLiabilitiesDetails" xlink:type="simple" xlink:href="vici-20260331.xsd#CommitmentsandContingentLiabilitiesScheduleofAssetsandLiabilitiesDetails"/>
  <link:definitionLink xlink:role="http://viciproperties.com/role/CommitmentsandContingentLiabilitiesScheduleofAssetsandLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionLineItems_019caf84-96f3-77ea-a6e4-bbf2e85a1a58" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeLeaseDescriptionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionTable_019caf84-96f2-72cb-a037-9acca452c7c2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeLeaseDescriptionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019caf84-96f3-77ea-a6e4-bbf2e85a1a58" xlink:to="loc_us-gaap_LesseeLeaseDescriptionTable_019caf84-96f2-72cb-a037-9acca452c7c2" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TypeOfArrangementAxis_019caf84-96f2-7dfb-87df-cf3cbd6a00fd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TypeOfArrangementAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LesseeLeaseDescriptionTable_019caf84-96f2-72cb-a037-9acca452c7c2" xlink:to="loc_us-gaap_TypeOfArrangementAxis_019caf84-96f2-7dfb-87df-cf3cbd6a00fd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_019caf84-96f2-7dfb-87df-cf3cbd6a00fd_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ArrangementsAndNonarrangementTransactionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_TypeOfArrangementAxis_019caf84-96f2-7dfb-87df-cf3cbd6a00fd" xlink:to="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_019caf84-96f2-7dfb-87df-cf3cbd6a00fd_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_019caf84-96f3-75a8-a96a-c215b3345232" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ArrangementsAndNonarrangementTransactionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_TypeOfArrangementAxis_019caf84-96f2-7dfb-87df-cf3cbd6a00fd" xlink:to="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_019caf84-96f3-75a8-a96a-c215b3345232" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_FinanceAndSalesTypeSubLeaseMember_019caf84-96f3-7824-bdcd-274bb6060e80" xlink:href="vici-20260331.xsd#vici_FinanceAndSalesTypeSubLeaseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_019caf84-96f3-75a8-a96a-c215b3345232" xlink:to="loc_vici_FinanceAndSalesTypeSubLeaseMember_019caf84-96f3-7824-bdcd-274bb6060e80" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_OperatingLeaseAndSubLeaseAssets_019caf84-96f3-7831-a1ee-737c56b0b5ea" xlink:href="vici-20260331.xsd#vici_OperatingLeaseAndSubLeaseAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019caf84-96f3-77ea-a6e4-bbf2e85a1a58" xlink:to="loc_vici_OperatingLeaseAndSubLeaseAssets_019caf84-96f3-7831-a1ee-737c56b0b5ea" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_OperatingLeaseAndSubLeaseLiabilities_019caf84-96f3-72da-97d4-43f9e8d61181" xlink:href="vici-20260331.xsd#vici_OperatingLeaseAndSubLeaseLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019caf84-96f3-77ea-a6e4-bbf2e85a1a58" xlink:to="loc_vici_OperatingLeaseAndSubLeaseLiabilities_019caf84-96f3-72da-97d4-43f9e8d61181" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_SalesTypeSubLeaseAssets_019caf84-96f3-7326-9e2f-9c416513985b" xlink:href="vici-20260331.xsd#vici_SalesTypeSubLeaseAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019caf84-96f3-77ea-a6e4-bbf2e85a1a58" xlink:to="loc_vici_SalesTypeSubLeaseAssets_019caf84-96f3-7326-9e2f-9c416513985b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiability_019caf84-96f3-750d-b9a6-f6f090ab7402" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeaseLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019caf84-96f3-77ea-a6e4-bbf2e85a1a58" xlink:to="loc_us-gaap_FinanceLeaseLiability_019caf84-96f3-750d-b9a6-f6f090ab7402" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_OtherAssetsSalesTypeSubleasesExcludingAccruedInterestAllowanceForCreditLosses_019caf84-96f3-7c66-a17e-df02aa18aae0" xlink:href="vici-20260331.xsd#vici_OtherAssetsSalesTypeSubleasesExcludingAccruedInterestAllowanceForCreditLosses"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019caf84-96f3-77ea-a6e4-bbf2e85a1a58" xlink:to="loc_vici_OtherAssetsSalesTypeSubleasesExcludingAccruedInterestAllowanceForCreditLosses_019caf84-96f3-7c66-a17e-df02aa18aae0" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://viciproperties.com/role/CommitmentsandContingentLiabilitiesScheduleofRentExpenseDetails" xlink:type="simple" xlink:href="vici-20260331.xsd#CommitmentsandContingentLiabilitiesScheduleofRentExpenseDetails"/>
  <link:definitionLink xlink:role="http://viciproperties.com/role/CommitmentsandContingentLiabilitiesScheduleofRentExpenseDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionLineItems_019caf84-96f3-78ee-aa9b-439fd069c791" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeLeaseDescriptionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionTable_019caf84-96f3-7f82-b7b4-92fc8496a20e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeLeaseDescriptionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019caf84-96f3-78ee-aa9b-439fd069c791" xlink:to="loc_us-gaap_LesseeLeaseDescriptionTable_019caf84-96f3-7f82-b7b4-92fc8496a20e" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TypeOfArrangementAxis_019caf84-96f3-7a43-a981-1530cea99ef1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TypeOfArrangementAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LesseeLeaseDescriptionTable_019caf84-96f3-7f82-b7b4-92fc8496a20e" xlink:to="loc_us-gaap_TypeOfArrangementAxis_019caf84-96f3-7a43-a981-1530cea99ef1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_019caf84-96f3-7a43-a981-1530cea99ef1_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ArrangementsAndNonarrangementTransactionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_TypeOfArrangementAxis_019caf84-96f3-7a43-a981-1530cea99ef1" xlink:to="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_019caf84-96f3-7a43-a981-1530cea99ef1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_019caf84-96f3-7b19-b7d6-07a3e4d48ffe" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ArrangementsAndNonarrangementTransactionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_TypeOfArrangementAxis_019caf84-96f3-7a43-a981-1530cea99ef1" xlink:to="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_019caf84-96f3-7b19-b7d6-07a3e4d48ffe" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_OperatingSubLeaseMember_019caf84-96f3-7753-89ae-7e64ffe5396f" xlink:href="vici-20260331.xsd#vici_OperatingSubLeaseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_019caf84-96f3-7b19-b7d6-07a3e4d48ffe" xlink:to="loc_vici_OperatingSubLeaseMember_019caf84-96f3-7753-89ae-7e64ffe5396f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_FinanceAndSalesTypeSubLeaseMember_019caf84-96f3-7ff1-b7b0-923eb4d23a90" xlink:href="vici-20260331.xsd#vici_FinanceAndSalesTypeSubLeaseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_019caf84-96f3-7b19-b7d6-07a3e4d48ffe" xlink:to="loc_vici_FinanceAndSalesTypeSubLeaseMember_019caf84-96f3-7ff1-b7b0-923eb4d23a90" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeasesOperatingAbstract_019caf84-96f3-7cd2-b24f-a048d3a836f8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LeasesOperatingAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019caf84-96f3-78ee-aa9b-439fd069c791" xlink:to="loc_us-gaap_LeasesOperatingAbstract_019caf84-96f3-7cd2-b24f-a048d3a836f8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseExpense_019caf84-96f3-7a80-bf12-e1bbdb9b3fbe" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LeasesOperatingAbstract_019caf84-96f3-7cd2-b24f-a048d3a836f8" xlink:to="loc_us-gaap_OperatingLeaseExpense_019caf84-96f3-7a80-bf12-e1bbdb9b3fbe" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubleaseIncome_019caf84-96f3-7d0e-b15b-0f8eb84f1882" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubleaseIncome"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LeasesOperatingAbstract_019caf84-96f3-7cd2-b24f-a048d3a836f8" xlink:to="loc_us-gaap_SubleaseIncome_019caf84-96f3-7d0e-b15b-0f8eb84f1882" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForRent_019caf84-96f3-7803-bb61-df7558158eb1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsForRent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LeasesOperatingAbstract_019caf84-96f3-7cd2-b24f-a048d3a836f8" xlink:to="loc_us-gaap_PaymentsForRent_019caf84-96f3-7803-bb61-df7558158eb1" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_LeasesFinanceAbstract_019caf84-96f3-74af-bc62-ce805e863d92" xlink:href="vici-20260331.xsd#vici_LeasesFinanceAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019caf84-96f3-78ee-aa9b-439fd069c791" xlink:to="loc_vici_LeasesFinanceAbstract_019caf84-96f3-74af-bc62-ce805e863d92" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseIncome_019caf84-96f3-7197-86d2-b37b52c9314b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LeaseIncome"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_vici_LeasesFinanceAbstract_019caf84-96f3-74af-bc62-ce805e863d92" xlink:to="loc_us-gaap_LeaseIncome_019caf84-96f3-7197-86d2-b37b52c9314b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseInterestExpense_019caf84-96f3-7a84-81bf-e724e8f75532" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeaseInterestExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_vici_LeasesFinanceAbstract_019caf84-96f3-74af-bc62-ce805e863d92" xlink:to="loc_us-gaap_FinanceLeaseInterestExpense_019caf84-96f3-7a84-81bf-e724e8f75532" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_FinanceLeaseContractualRent_019caf84-96f3-76de-b987-5c357013945e" xlink:href="vici-20260331.xsd#vici_FinanceLeaseContractualRent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_vici_LeasesFinanceAbstract_019caf84-96f3-74af-bc62-ce805e863d92" xlink:to="loc_vici_FinanceLeaseContractualRent_019caf84-96f3-76de-b987-5c357013945e" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://viciproperties.com/role/CommitmentsandContingentLiabilitiesScheduleOfFutureMinimumLeasePaymentsDetails" xlink:type="simple" xlink:href="vici-20260331.xsd#CommitmentsandContingentLiabilitiesScheduleOfFutureMinimumLeasePaymentsDetails"/>
  <link:definitionLink xlink:role="http://viciproperties.com/role/CommitmentsandContingentLiabilitiesScheduleOfFutureMinimumLeasePaymentsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionLineItems_019caf84-96f3-71bd-9b4b-850554fb65cb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeLeaseDescriptionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionTable_019caf84-96f3-7673-96ff-6984e460ef47" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeLeaseDescriptionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019caf84-96f3-71bd-9b4b-850554fb65cb" xlink:to="loc_us-gaap_LesseeLeaseDescriptionTable_019caf84-96f3-7673-96ff-6984e460ef47" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TypeOfArrangementAxis_019caf84-96f3-7a9c-b8c3-e5cf1b41518e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TypeOfArrangementAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LesseeLeaseDescriptionTable_019caf84-96f3-7673-96ff-6984e460ef47" xlink:to="loc_us-gaap_TypeOfArrangementAxis_019caf84-96f3-7a9c-b8c3-e5cf1b41518e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_019caf84-96f3-7a9c-b8c3-e5cf1b41518e_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ArrangementsAndNonarrangementTransactionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_TypeOfArrangementAxis_019caf84-96f3-7a9c-b8c3-e5cf1b41518e" xlink:to="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_019caf84-96f3-7a9c-b8c3-e5cf1b41518e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_019caf84-96f3-7e3a-9e28-ca22b7ce88bb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ArrangementsAndNonarrangementTransactionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_TypeOfArrangementAxis_019caf84-96f3-7a9c-b8c3-e5cf1b41518e" xlink:to="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_019caf84-96f3-7e3a-9e28-ca22b7ce88bb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_OperatingSubLeaseMember_019caf84-96f3-7877-ba88-10e136e28b9d" xlink:href="vici-20260331.xsd#vici_OperatingSubLeaseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_019caf84-96f3-7e3a-9e28-ca22b7ce88bb" xlink:to="loc_vici_OperatingSubLeaseMember_019caf84-96f3-7877-ba88-10e136e28b9d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_FinanceAndSalesTypeSubLeaseMember_019caf84-96f3-7651-a0a3-b127d4f5f2b2" xlink:href="vici-20260331.xsd#vici_FinanceAndSalesTypeSubLeaseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_019caf84-96f3-7e3a-9e28-ca22b7ce88bb" xlink:to="loc_vici_FinanceAndSalesTypeSubLeaseMember_019caf84-96f3-7651-a0a3-b127d4f5f2b2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019caf84-96f3-799d-a48a-31e929d8115d" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LesseeLeaseDescriptionTable_019caf84-96f3-7673-96ff-6984e460ef47" xlink:to="loc_srt_RangeAxis_019caf84-96f3-799d-a48a-31e929d8115d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019caf84-96f3-799d-a48a-31e929d8115d_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_019caf84-96f3-799d-a48a-31e929d8115d" xlink:to="loc_srt_RangeMember_019caf84-96f3-799d-a48a-31e929d8115d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019caf84-96f3-7fb7-bf57-478c59236d45" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_019caf84-96f3-799d-a48a-31e929d8115d" xlink:to="loc_srt_RangeMember_019caf84-96f3-7fb7-bf57-478c59236d45" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_019caf84-96f3-7e75-8b13-f01d85d96bd0" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019caf84-96f3-7fb7-bf57-478c59236d45" xlink:to="loc_srt_MinimumMember_019caf84-96f3-7e75-8b13-f01d85d96bd0" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019caf84-96f3-7d6f-8b42-adc0a6ddd384" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019caf84-96f3-7fb7-bf57-478c59236d45" xlink:to="loc_srt_MaximumMember_019caf84-96f3-7d6f-8b42-adc0a6ddd384" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract_019caf84-96f3-7397-bd3f-47627af52945" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019caf84-96f3-71bd-9b4b-850554fb65cb" xlink:to="loc_us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract_019caf84-96f3-7397-bd3f-47627af52945" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear_019caf84-96f3-7460-9b3f-d5f29b18c3b8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract_019caf84-96f3-7397-bd3f-47627af52945" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear_019caf84-96f3-7460-9b3f-d5f29b18c3b8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_019caf84-96f3-7340-bfbd-9586683a5904" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract_019caf84-96f3-7397-bd3f-47627af52945" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_019caf84-96f3-7340-bfbd-9586683a5904" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_019caf84-96f3-7d9b-bb55-40c515f54d38" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract_019caf84-96f3-7397-bd3f-47627af52945" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_019caf84-96f3-7d9b-bb55-40c515f54d38" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_019caf84-96f3-7db8-91e1-77c8b8367842" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract_019caf84-96f3-7397-bd3f-47627af52945" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_019caf84-96f3-7db8-91e1-77c8b8367842" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_019caf84-96f3-7f86-840c-512d7c4b5a1a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract_019caf84-96f3-7397-bd3f-47627af52945" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_019caf84-96f3-7f86-840c-512d7c4b5a1a" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive_019caf84-96f3-74f0-8b24-d1891ed6f13c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract_019caf84-96f3-7397-bd3f-47627af52945" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive_019caf84-96f3-74f0-8b24-d1891ed6f13c" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive_019caf84-96f3-74ea-abe3-cd1bc5b9a97a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract_019caf84-96f3-7397-bd3f-47627af52945" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive_019caf84-96f3-74ea-abe3-cd1bc5b9a97a" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_019caf84-96f3-7402-b9dc-845853ae9c0f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract_019caf84-96f3-7397-bd3f-47627af52945" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_019caf84-96f3-7402-b9dc-845853ae9c0f" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_019caf84-96f3-7d54-927b-f36f26070642" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract_019caf84-96f3-7397-bd3f-47627af52945" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_019caf84-96f3-7d54-927b-f36f26070642" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiability_019caf84-96f3-7ddd-b934-067a7bbd3b58" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract_019caf84-96f3-7397-bd3f-47627af52945" xlink:to="loc_us-gaap_OperatingLeaseLiability_019caf84-96f3-7ddd-b934-067a7bbd3b58" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseDiscountRate_019caf84-96f3-7484-a38a-9d8d84cb7c3a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeOperatingLeaseDiscountRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract_019caf84-96f3-7397-bd3f-47627af52945" xlink:to="loc_us-gaap_LesseeOperatingLeaseDiscountRate_019caf84-96f3-7484-a38a-9d8d84cb7c3a" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1_019caf84-96f3-74c8-bf40-b39a4559c455" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract_019caf84-96f3-7397-bd3f-47627af52945" xlink:to="loc_us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1_019caf84-96f3-74c8-bf40-b39a4559c455" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract_019caf84-96f3-7988-bb9b-f18d19d0e52a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019caf84-96f3-71bd-9b4b-850554fb65cb" xlink:to="loc_us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract_019caf84-96f3-7988-bb9b-f18d19d0e52a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear_019caf84-96f3-7d70-962a-15818c9da4ae" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract_019caf84-96f3-7988-bb9b-f18d19d0e52a" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear_019caf84-96f3-7d70-962a-15818c9da4ae" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths_019caf84-96f3-78d6-ab82-04dd650711b7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract_019caf84-96f3-7988-bb9b-f18d19d0e52a" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths_019caf84-96f3-78d6-ab82-04dd650711b7" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo_019caf84-96f3-76d0-91ab-1ba6af3a7c23" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract_019caf84-96f3-7988-bb9b-f18d19d0e52a" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo_019caf84-96f3-76d0-91ab-1ba6af3a7c23" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree_019caf84-96f3-7d90-9f68-13b5dec931bc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract_019caf84-96f3-7988-bb9b-f18d19d0e52a" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree_019caf84-96f3-7d90-9f68-13b5dec931bc" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour_019caf84-96f3-70de-a266-3cc5bb1f739d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract_019caf84-96f3-7988-bb9b-f18d19d0e52a" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour_019caf84-96f3-70de-a266-3cc5bb1f739d" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearFive_019caf84-96f3-7fed-94ea-f227d4bc7b13" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueYearFive"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract_019caf84-96f3-7988-bb9b-f18d19d0e52a" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearFive_019caf84-96f3-7fed-94ea-f227d4bc7b13" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueAfterYearFive_019caf84-96f3-7775-b1d5-df7adb02f9c5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueAfterYearFive"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract_019caf84-96f3-7988-bb9b-f18d19d0e52a" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueAfterYearFive_019caf84-96f3-7775-b1d5-df7adb02f9c5" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_019caf84-96f3-7b18-8ac6-b26131ea6b8d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract_019caf84-96f3-7988-bb9b-f18d19d0e52a" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_019caf84-96f3-7b18-8ac6-b26131ea6b8d" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount_019caf84-96f3-710c-bbf1-d3e7ea30bf65" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract_019caf84-96f3-7988-bb9b-f18d19d0e52a" xlink:to="loc_us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount_019caf84-96f3-710c-bbf1-d3e7ea30bf65" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiability_019caf84-96f3-7fc5-aa7b-6d71fb68d472" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeaseLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract_019caf84-96f3-7988-bb9b-f18d19d0e52a" xlink:to="loc_us-gaap_FinanceLeaseLiability_019caf84-96f3-7fc5-aa7b-6d71fb68d472" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeFinanceLeaseDiscountRate_019caf84-96f3-784b-af39-0a21455cf0f1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LesseeFinanceLeaseDiscountRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract_019caf84-96f3-7988-bb9b-f18d19d0e52a" xlink:to="loc_us-gaap_LesseeFinanceLeaseDiscountRate_019caf84-96f3-784b-af39-0a21455cf0f1" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseWeightedAverageRemainingLeaseTerm1_019caf84-96f3-7c54-8483-5d0a271745d2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeaseWeightedAverageRemainingLeaseTerm1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract_019caf84-96f3-7988-bb9b-f18d19d0e52a" xlink:to="loc_us-gaap_FinanceLeaseWeightedAverageRemainingLeaseTerm1_019caf84-96f3-7c54-8483-5d0a271745d2" xlink:type="arc" order="12"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://viciproperties.com/role/StockholdersEquityNarrativeDetails" xlink:type="simple" xlink:href="vici-20260331.xsd#StockholdersEquityNarrativeDetails"/>
  <link:definitionLink xlink:role="http://viciproperties.com/role/StockholdersEquityNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockLineItems_019caf84-96f3-702c-9bfb-5c0f525452c7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfStockLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfStockByClassTable_019caf84-96f3-746f-8436-1a0e8feff1e5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfStockByClassTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ClassOfStockLineItems_019caf84-96f3-702c-9bfb-5c0f525452c7" xlink:to="loc_us-gaap_ScheduleOfStockByClassTable_019caf84-96f3-746f-8436-1a0e8feff1e5" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsidiarySaleOfStockAxis_019caf84-96f3-7dd1-abc2-d861b7f361d1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubsidiarySaleOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_019caf84-96f3-746f-8436-1a0e8feff1e5" xlink:to="loc_us-gaap_SubsidiarySaleOfStockAxis_019caf84-96f3-7dd1-abc2-d861b7f361d1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_019caf84-96f3-7dd1-abc2-d861b7f361d1_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_019caf84-96f3-7dd1-abc2-d861b7f361d1" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_019caf84-96f3-7dd1-abc2-d861b7f361d1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_019caf84-96f3-73fc-8320-e349af4950e3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_019caf84-96f3-7dd1-abc2-d861b7f361d1" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_019caf84-96f3-73fc-8320-e349af4950e3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_ATMStockOfferingProgramMember_019caf84-96f3-7a98-9142-37ee676f8c41" xlink:href="vici-20260331.xsd#vici_ATMStockOfferingProgramMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_019caf84-96f3-73fc-8320-e349af4950e3" xlink:to="loc_vici_ATMStockOfferingProgramMember_019caf84-96f3-7a98-9142-37ee676f8c41" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_019d9b74-6700-7a50-b4fa-b6e37df05559" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubsequentEventTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_019caf84-96f3-746f-8436-1a0e8feff1e5" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_019d9b74-6700-7a50-b4fa-b6e37df05559" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_019d9b74-6700-7a50-b4fa-b6e37df05559_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_019d9b74-6700-7a50-b4fa-b6e37df05559" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_019d9b74-6700-7a50-b4fa-b6e37df05559_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_019d9b74-6700-77a4-a49e-5313322f07ec" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_019d9b74-6700-7a50-b4fa-b6e37df05559" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_019d9b74-6700-77a4-a49e-5313322f07ec" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventMember_019d9b74-6700-7a0e-b8dd-072e444677dc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubsequentEventMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_019d9b74-6700-77a4-a49e-5313322f07ec" xlink:to="loc_us-gaap_SubsequentEventMember_019d9b74-6700-7a0e-b8dd-072e444677dc" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_CommonAndPreferredSharesAuthorized_019caf84-96f3-79d7-a235-3238a52f6361" xlink:href="vici-20260331.xsd#vici_CommonAndPreferredSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019caf84-96f3-702c-9bfb-5c0f525452c7" xlink:to="loc_vici_CommonAndPreferredSharesAuthorized_019caf84-96f3-79d7-a235-3238a52f6361" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesAuthorized_019caf84-96f3-711a-899b-b3128f19f498" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019caf84-96f3-702c-9bfb-5c0f525452c7" xlink:to="loc_us-gaap_CommonStockSharesAuthorized_019caf84-96f3-711a-899b-b3128f19f498" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare_019caf84-96f3-71f5-bb84-d8e0a274471e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockParOrStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019caf84-96f3-702c-9bfb-5c0f525452c7" xlink:to="loc_us-gaap_CommonStockParOrStatedValuePerShare_019caf84-96f3-71f5-bb84-d8e0a274471e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesAuthorized_019caf84-96f3-788e-8d4c-4df06f3b2519" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019caf84-96f3-702c-9bfb-5c0f525452c7" xlink:to="loc_us-gaap_PreferredStockSharesAuthorized_019caf84-96f3-788e-8d4c-4df06f3b2519" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockParOrStatedValuePerShare_019caf84-96f3-74dd-b40d-cbf62624bc97" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockParOrStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019caf84-96f3-702c-9bfb-5c0f525452c7" xlink:to="loc_us-gaap_PreferredStockParOrStatedValuePerShare_019caf84-96f3-74dd-b40d-cbf62624bc97" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_MaximumAmountOfSharesToBeSold_019caf84-96f3-7943-9a2e-5a037815f8cc" xlink:href="vici-20260331.xsd#vici_MaximumAmountOfSharesToBeSold"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019caf84-96f3-702c-9bfb-5c0f525452c7" xlink:to="loc_vici_MaximumAmountOfSharesToBeSold_019caf84-96f3-7943-9a2e-5a037815f8cc" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_OfferingFairValue_019caf84-96f3-780d-95e2-9497a7339758" xlink:href="vici-20260331.xsd#vici_OfferingFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019caf84-96f3-702c-9bfb-5c0f525452c7" xlink:to="loc_vici_OfferingFairValue_019caf84-96f3-780d-95e2-9497a7339758" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_SharesRemainingToBeSettled_019cd205-8ecf-7cf4-81de-c4ce0ebeac22" xlink:href="vici-20260331.xsd#vici_SharesRemainingToBeSettled"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019caf84-96f3-702c-9bfb-5c0f525452c7" xlink:to="loc_vici_SharesRemainingToBeSettled_019cd205-8ecf-7cf4-81de-c4ce0ebeac22" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_OfferingForwardPriceNet_019caf84-96f3-7c7a-9c44-a3ee04042c00" xlink:href="vici-20260331.xsd#vici_OfferingForwardPriceNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019caf84-96f3-702c-9bfb-5c0f525452c7" xlink:to="loc_vici_OfferingForwardPriceNet_019caf84-96f3-7c7a-9c44-a3ee04042c00" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_ForwardAgreementOnTheProceedsFromIssuanceOfCommonStock_019caf84-96f3-70f3-a646-2598e3685d47" xlink:href="vici-20260331.xsd#vici_ForwardAgreementOnTheProceedsFromIssuanceOfCommonStock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019caf84-96f3-702c-9bfb-5c0f525452c7" xlink:to="loc_vici_ForwardAgreementOnTheProceedsFromIssuanceOfCommonStock_019caf84-96f3-70f3-a646-2598e3685d47" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_ForwardShareAgreementsPaymentsForRepurchaseOfCommonStock_019caf84-96f3-7113-80ba-58522347e7c4" xlink:href="vici-20260331.xsd#vici_ForwardShareAgreementsPaymentsForRepurchaseOfCommonStock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019caf84-96f3-702c-9bfb-5c0f525452c7" xlink:to="loc_vici_ForwardShareAgreementsPaymentsForRepurchaseOfCommonStock_019caf84-96f3-7113-80ba-58522347e7c4" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_ForwardShareAgreementsNetSharesSettlement_019caf84-96f3-7450-af5e-5a5bb71f5727" xlink:href="vici-20260331.xsd#vici_ForwardShareAgreementsNetSharesSettlement"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019caf84-96f3-702c-9bfb-5c0f525452c7" xlink:to="loc_vici_ForwardShareAgreementsNetSharesSettlement_019caf84-96f3-7450-af5e-5a5bb71f5727" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_019d9b74-6700-75c7-8b5d-d679b74f9fb3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019caf84-96f3-702c-9bfb-5c0f525452c7" xlink:to="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_019d9b74-6700-75c7-8b5d-d679b74f9fb3" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfCommonStock_019d9b74-6700-75e2-8e3a-6ba2179491e1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromIssuanceOfCommonStock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019caf84-96f3-702c-9bfb-5c0f525452c7" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfCommonStock_019d9b74-6700-75e2-8e3a-6ba2179491e1" xlink:type="arc" order="13"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://viciproperties.com/role/StockholdersEquityScheduleofATMOfferingProgramandForwardSettlementActivityDetails" xlink:type="simple" xlink:href="vici-20260331.xsd#StockholdersEquityScheduleofATMOfferingProgramandForwardSettlementActivityDetails"/>
  <link:definitionLink xlink:role="http://viciproperties.com/role/StockholdersEquityScheduleofATMOfferingProgramandForwardSettlementActivityDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockLineItems_019caf84-96f3-7abc-a645-aad8d1cb6956" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfStockLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfStockByClassTable_019caf84-96f3-7b5a-acba-0d2423f672b1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfStockByClassTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ClassOfStockLineItems_019caf84-96f3-7abc-a645-aad8d1cb6956" xlink:to="loc_us-gaap_ScheduleOfStockByClassTable_019caf84-96f3-7b5a-acba-0d2423f672b1" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsidiarySaleOfStockAxis_019caf84-96f3-78e1-98cf-c7ed375d02ab" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubsidiarySaleOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_019caf84-96f3-7b5a-acba-0d2423f672b1" xlink:to="loc_us-gaap_SubsidiarySaleOfStockAxis_019caf84-96f3-78e1-98cf-c7ed375d02ab" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_019caf84-96f3-78e1-98cf-c7ed375d02ab_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_019caf84-96f3-78e1-98cf-c7ed375d02ab" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_019caf84-96f3-78e1-98cf-c7ed375d02ab_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_019caf84-96f3-7481-9c6f-46266223fc0d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_019caf84-96f3-78e1-98cf-c7ed375d02ab" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_019caf84-96f3-7481-9c6f-46266223fc0d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_ATMStockOfferingProgramMember_019caf84-96f3-7e99-b409-a8a31e071f6d" xlink:href="vici-20260331.xsd#vici_ATMStockOfferingProgramMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_019caf84-96f3-7481-9c6f-46266223fc0d" xlink:to="loc_vici_ATMStockOfferingProgramMember_019caf84-96f3-7e99-b409-a8a31e071f6d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_019caf84-96f3-76bc-9ed0-babb9827cabf" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_019caf84-96f3-7b5a-acba-0d2423f672b1" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_019caf84-96f3-76bc-9ed0-babb9827cabf" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019caf84-96f3-76bc-9ed0-babb9827cabf_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_019caf84-96f3-76bc-9ed0-babb9827cabf" xlink:to="loc_us-gaap_EquityComponentDomain_019caf84-96f3-76bc-9ed0-babb9827cabf_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019caf84-96f3-777e-a973-50f0c619c30b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_019caf84-96f3-76bc-9ed0-babb9827cabf" xlink:to="loc_us-gaap_EquityComponentDomain_019caf84-96f3-777e-a973-50f0c619c30b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_March2025ATMForwardSaleAgreementsMember_019caf84-96f3-7345-b1eb-d1a6a7f127cc" xlink:href="vici-20260331.xsd#vici_March2025ATMForwardSaleAgreementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019caf84-96f3-777e-a973-50f0c619c30b" xlink:to="loc_vici_March2025ATMForwardSaleAgreementsMember_019caf84-96f3-7345-b1eb-d1a6a7f127cc" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForwardContractIndexedToIssuersEquityShares_019caf84-96f3-749f-b7ca-1915d5020b0c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ForwardContractIndexedToIssuersEquityShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019caf84-96f3-7abc-a645-aad8d1cb6956" xlink:to="loc_us-gaap_ForwardContractIndexedToIssuersEquityShares_019caf84-96f3-749f-b7ca-1915d5020b0c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharePrice_019caf84-96f3-7b07-a669-dd9b78871611" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SharePrice"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019caf84-96f3-7abc-a645-aad8d1cb6956" xlink:to="loc_us-gaap_SharePrice_019caf84-96f3-7b07-a669-dd9b78871611" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueNewIssues_019caf84-96f3-7723-be08-a5b6e42864d0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockIssuedDuringPeriodValueNewIssues"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019caf84-96f3-7abc-a645-aad8d1cb6956" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueNewIssues_019caf84-96f3-7723-be08-a5b6e42864d0" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_OfferingForwardPrice_019caf84-96f3-7177-ab3f-1e86dbb0bebc" xlink:href="vici-20260331.xsd#vici_OfferingForwardPrice"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019caf84-96f3-7abc-a645-aad8d1cb6956" xlink:to="loc_vici_OfferingForwardPrice_019caf84-96f3-7177-ab3f-1e86dbb0bebc" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForwardContractIndexedToEquitySettlementShareFairValue_019caf84-96f3-7415-8d98-d03db238ef1e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ForwardContractIndexedToEquitySettlementShareFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019caf84-96f3-7abc-a645-aad8d1cb6956" xlink:to="loc_us-gaap_ForwardContractIndexedToEquitySettlementShareFairValue_019caf84-96f3-7415-8d98-d03db238ef1e" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://viciproperties.com/role/StockholdersEquityScheduleofCommonStockOutstandingDetails" xlink:type="simple" xlink:href="vici-20260331.xsd#StockholdersEquityScheduleofCommonStockOutstandingDetails"/>
  <link:definitionLink xlink:role="http://viciproperties.com/role/StockholdersEquityScheduleofCommonStockOutstandingDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockLineItems_019caf84-96f3-70fc-8525-1a66ed3304b4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfStockLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfStockByClassTable_019caf84-96f3-7a1b-83b1-dff15412342a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfStockByClassTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ClassOfStockLineItems_019caf84-96f3-70fc-8525-1a66ed3304b4" xlink:to="loc_us-gaap_ScheduleOfStockByClassTable_019caf84-96f3-7a1b-83b1-dff15412342a" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_019caf84-96f3-7793-a10d-a242ebd4fff6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_019caf84-96f3-7a1b-83b1-dff15412342a" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_019caf84-96f3-7793-a10d-a242ebd4fff6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019caf84-96f3-7793-a10d-a242ebd4fff6_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_019caf84-96f3-7793-a10d-a242ebd4fff6" xlink:to="loc_us-gaap_EquityComponentDomain_019caf84-96f3-7793-a10d-a242ebd4fff6_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019caf84-96f3-7816-a6f7-821948acb399" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_019caf84-96f3-7793-a10d-a242ebd4fff6" xlink:to="loc_us-gaap_EquityComponentDomain_019caf84-96f3-7816-a6f7-821948acb399" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_019caf84-96f3-718b-a5df-02cbf4449ceb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019caf84-96f3-7816-a6f7-821948acb399" xlink:to="loc_us-gaap_CommonStockMember_019caf84-96f3-718b-a5df-02cbf4449ceb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019caf84-96f3-72e1-9d97-0cbc93a05bec" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019caf84-96f3-70fc-8525-1a66ed3304b4" xlink:to="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019caf84-96f3-72e1-9d97-0cbc93a05bec" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_019caf84-96f3-749f-b413-297aea7bc665" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019caf84-96f3-72e1-9d97-0cbc93a05bec" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_019caf84-96f3-749f-b413-297aea7bc665" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation_019caf84-96f3-75dc-ab0a-b20d1b8e7b1e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019caf84-96f3-72e1-9d97-0cbc93a05bec" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation_019caf84-96f3-75dc-ab0a-b20d1b8e7b1e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_019caf84-96f3-76f7-b700-415a6ef209c2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockSharesOutstanding"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://viciproperties.com/role/EarningsPerShareandEarningsPerUnitScheduleofWeightedAverageEarningsPerShareDetails" xlink:type="simple" xlink:href="vici-20260331.xsd#EarningsPerShareandEarningsPerUnitScheduleofWeightedAverageEarningsPerShareDetails"/>
  <link:definitionLink xlink:role="http://viciproperties.com/role/EarningsPerShareandEarningsPerUnitScheduleofWeightedAverageEarningsPerShareDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareDilutedLineItems_019caf84-96f3-7782-a50c-30220ebe258f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EarningsPerShareDilutedLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEarningsPerShareDilutedByCommonClassTable_019caf84-96f3-769e-bc56-9a5f1cedcb0a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfEarningsPerShareDilutedByCommonClassTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_EarningsPerShareDilutedLineItems_019caf84-96f3-7782-a50c-30220ebe258f" xlink:to="loc_us-gaap_ScheduleOfEarningsPerShareDilutedByCommonClassTable_019caf84-96f3-769e-bc56-9a5f1cedcb0a" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019caf84-96f3-7260-b3f6-bbf41bbe8f32" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEarningsPerShareDilutedByCommonClassTable_019caf84-96f3-769e-bc56-9a5f1cedcb0a" xlink:to="loc_dei_LegalEntityAxis_019caf84-96f3-7260-b3f6-bbf41bbe8f32" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019caf84-96f3-7260-b3f6-bbf41bbe8f32_default" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019caf84-96f3-7260-b3f6-bbf41bbe8f32" xlink:to="loc_dei_EntityDomain_019caf84-96f3-7260-b3f6-bbf41bbe8f32_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019caf84-96f3-79ee-bac4-5a2e50848f9a" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019caf84-96f3-7260-b3f6-bbf41bbe8f32" xlink:to="loc_dei_EntityDomain_019caf84-96f3-79ee-bac4-5a2e50848f9a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_VICIPropertiesLPMember_019caf84-96f3-713a-b3eb-c8aafc01b198" xlink:href="vici-20260331.xsd#vici_VICIPropertiesLPMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019caf84-96f3-79ee-bac4-5a2e50848f9a" xlink:to="loc_vici_VICIPropertiesLPMember_019caf84-96f3-713a-b3eb-c8aafc01b198" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_019caf84-96f3-78be-8c0d-9d10b8328886" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareDilutedLineItems_019caf84-96f3-7782-a50c-30220ebe258f" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_019caf84-96f3-78be-8c0d-9d10b8328886" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_019caf84-96f3-709f-8792-554ffcb82a66" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareDilutedLineItems_019caf84-96f3-7782-a50c-30220ebe258f" xlink:to="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_019caf84-96f3-709f-8792-554ffcb82a66" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncrementalCommonSharesAttributableToEquityForwardAgreements_019caf84-96f3-7a46-9237-75944d9e910d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncrementalCommonSharesAttributableToEquityForwardAgreements"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareDilutedLineItems_019caf84-96f3-7782-a50c-30220ebe258f" xlink:to="loc_us-gaap_IncrementalCommonSharesAttributableToEquityForwardAgreements_019caf84-96f3-7a46-9237-75944d9e910d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019caf84-96f3-713a-a252-7e7a05077b0d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareDilutedLineItems_019caf84-96f3-7782-a50c-30220ebe258f" xlink:to="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019caf84-96f3-713a-a252-7e7a05077b0d" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://viciproperties.com/role/EarningsPerShareandEarningsPerUnitScheduleofBasicAndDilutedEarningsPerShareDetails" xlink:type="simple" xlink:href="vici-20260331.xsd#EarningsPerShareandEarningsPerUnitScheduleofBasicAndDilutedEarningsPerShareDetails"/>
  <link:definitionLink xlink:role="http://viciproperties.com/role/EarningsPerShareandEarningsPerUnitScheduleofBasicAndDilutedEarningsPerShareDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareDilutedLineItems_019caf84-96f3-7afd-b7c7-fe0a85ce592f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EarningsPerShareDilutedLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEarningsPerShareDilutedByCommonClassTable_019caf84-96f3-7393-8eb1-fd563c7682d9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfEarningsPerShareDilutedByCommonClassTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_EarningsPerShareDilutedLineItems_019caf84-96f3-7afd-b7c7-fe0a85ce592f" xlink:to="loc_us-gaap_ScheduleOfEarningsPerShareDilutedByCommonClassTable_019caf84-96f3-7393-8eb1-fd563c7682d9" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019caf84-96f3-7ff1-9c65-aa3193ad05c8" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEarningsPerShareDilutedByCommonClassTable_019caf84-96f3-7393-8eb1-fd563c7682d9" xlink:to="loc_dei_LegalEntityAxis_019caf84-96f3-7ff1-9c65-aa3193ad05c8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019caf84-96f3-7ff1-9c65-aa3193ad05c8_default" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019caf84-96f3-7ff1-9c65-aa3193ad05c8" xlink:to="loc_dei_EntityDomain_019caf84-96f3-7ff1-9c65-aa3193ad05c8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019caf84-96f3-7291-8490-1f1937fc9553" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019caf84-96f3-7ff1-9c65-aa3193ad05c8" xlink:to="loc_dei_EntityDomain_019caf84-96f3-7291-8490-1f1937fc9553" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_VICIPropertiesLPMember_019caf84-96f3-7f2d-975c-6d35d4f19817" xlink:href="vici-20260331.xsd#vici_VICIPropertiesLPMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019caf84-96f3-7291-8490-1f1937fc9553" xlink:to="loc_vici_VICIPropertiesLPMember_019caf84-96f3-7f2d-975c-6d35d4f19817" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersOperationsBasicAbstract_019caf84-96f3-7607-8078-181b2f73333d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersOperationsBasicAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareDilutedLineItems_019caf84-96f3-7afd-b7c7-fe0a85ce592f" xlink:to="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersOperationsBasicAbstract_019caf84-96f3-7607-8078-181b2f73333d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_019cdc4a-e0d9-731d-a318-05e3b5a8c983" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersOperationsBasicAbstract_019caf84-96f3-7607-8078-181b2f73333d" xlink:to="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_019cdc4a-e0d9-731d-a318-05e3b5a8c983" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_019caf84-96f3-7029-b854-77cbd7f4d7ba" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersOperationsBasicAbstract_019caf84-96f3-7607-8078-181b2f73333d" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_019caf84-96f3-7029-b854-77cbd7f4d7ba" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareBasic_019caf84-96f3-7b79-bab9-27840b740173" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EarningsPerShareBasic"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersOperationsBasicAbstract_019caf84-96f3-7607-8078-181b2f73333d" xlink:to="loc_us-gaap_EarningsPerShareBasic_019caf84-96f3-7b79-bab9-27840b740173" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersOperationsDilutedAbstract_019caf84-96f3-7145-a623-9172cd700fa7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersOperationsDilutedAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareDilutedLineItems_019caf84-96f3-7afd-b7c7-fe0a85ce592f" xlink:to="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersOperationsDilutedAbstract_019caf84-96f3-7145-a623-9172cd700fa7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted_019cdc4a-40af-75ce-8d11-1bd8369321f0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersOperationsDilutedAbstract_019caf84-96f3-7145-a623-9172cd700fa7" xlink:to="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted_019cdc4a-40af-75ce-8d11-1bd8369321f0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019caf84-96f3-77a3-aaad-02e5d30ac960" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersOperationsDilutedAbstract_019caf84-96f3-7145-a623-9172cd700fa7" xlink:to="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019caf84-96f3-77a3-aaad-02e5d30ac960" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareDiluted_019caf84-96f3-730b-b9e1-21bac6478617" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EarningsPerShareDiluted"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersOperationsDilutedAbstract_019caf84-96f3-7145-a623-9172cd700fa7" xlink:to="loc_us-gaap_EarningsPerShareDiluted_019caf84-96f3-730b-b9e1-21bac6478617" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://viciproperties.com/role/StockBasedCompensationNarrativeDetails" xlink:type="simple" xlink:href="vici-20260331.xsd#StockBasedCompensationNarrativeDetails"/>
  <link:definitionLink xlink:role="http://viciproperties.com/role/StockBasedCompensationNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019caf84-96f3-754e-a2c9-dda523aeb4e6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019caf84-96f3-7b02-8708-06c801cac397" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019caf84-96f3-754e-a2c9-dda523aeb4e6" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019caf84-96f3-7b02-8708-06c801cac397" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_019caf84-96f3-7211-aee2-cf50fa84637c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019caf84-96f3-7b02-8708-06c801cac397" xlink:to="loc_us-gaap_AwardTypeAxis_019caf84-96f3-7211-aee2-cf50fa84637c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019caf84-96f3-7211-aee2-cf50fa84637c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_019caf84-96f3-7211-aee2-cf50fa84637c" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019caf84-96f3-7211-aee2-cf50fa84637c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019caf84-96f3-740e-a30b-eda779661cf4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_019caf84-96f3-7211-aee2-cf50fa84637c" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019caf84-96f3-740e-a30b-eda779661cf4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_StockIncentivePlanMember_019caf84-96f3-7715-9719-91611d30212d" xlink:href="vici-20260331.xsd#vici_StockIncentivePlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019caf84-96f3-740e-a30b-eda779661cf4" xlink:to="loc_vici_StockIncentivePlanMember_019caf84-96f3-7715-9719-91611d30212d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_019caf84-96f3-74e2-8add-3ee82f302a29" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019caf84-96f3-754e-a2c9-dda523aeb4e6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_019caf84-96f3-74e2-8add-3ee82f302a29" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfRemainingSharesAuthorized_019caf84-96f3-78be-a47d-7c611b3874be" xlink:href="vici-20260331.xsd#vici_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfRemainingSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019caf84-96f3-754e-a2c9-dda523aeb4e6" xlink:to="loc_vici_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfRemainingSharesAuthorized_019caf84-96f3-78be-a47d-7c611b3874be" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_019caf84-96f3-781c-a9d8-3ddd4f9441cd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019caf84-96f3-754e-a2c9-dda523aeb4e6" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_019caf84-96f3-781c-a9d8-3ddd4f9441cd" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms_019caf84-96f3-722f-a3fb-27eb4b141dc6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019caf84-96f3-754e-a2c9-dda523aeb4e6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms_019caf84-96f3-722f-a3fb-27eb4b141dc6" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://viciproperties.com/role/StockBasedCompensationScheduleOfRestrictedStockDetails" xlink:type="simple" xlink:href="vici-20260331.xsd#StockBasedCompensationScheduleOfRestrictedStockDetails"/>
  <link:definitionLink xlink:role="http://viciproperties.com/role/StockBasedCompensationScheduleOfRestrictedStockDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019caf84-96f3-75cc-96b1-b515d94dbb89" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019caf84-96f3-792e-a253-c55a098beaa5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019caf84-96f3-75cc-96b1-b515d94dbb89" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019caf84-96f3-792e-a253-c55a098beaa5" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_019caf84-96f3-7365-b3ff-7aa868d5dd6e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019caf84-96f3-792e-a253-c55a098beaa5" xlink:to="loc_us-gaap_AwardTypeAxis_019caf84-96f3-7365-b3ff-7aa868d5dd6e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019caf84-96f3-7365-b3ff-7aa868d5dd6e_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_019caf84-96f3-7365-b3ff-7aa868d5dd6e" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019caf84-96f3-7365-b3ff-7aa868d5dd6e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019caf84-96f3-7407-9fee-25961cee9fc5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_019caf84-96f3-7365-b3ff-7aa868d5dd6e" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019caf84-96f3-7407-9fee-25961cee9fc5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_TimeBasedRestrictedStockMember_019daf4e-8541-7786-806a-fe491eaa3c9b" xlink:href="vici-20260331.xsd#vici_TimeBasedRestrictedStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019caf84-96f3-7407-9fee-25961cee9fc5" xlink:to="loc_vici_TimeBasedRestrictedStockMember_019daf4e-8541-7786-806a-fe491eaa3c9b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_PerformanceBasedRestrictedStockUnitsMember_019caf84-96f3-7e15-a4fd-7c08473b25f2" xlink:href="vici-20260331.xsd#vici_PerformanceBasedRestrictedStockUnitsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019caf84-96f3-7407-9fee-25961cee9fc5" xlink:to="loc_vici_PerformanceBasedRestrictedStockUnitsMember_019caf84-96f3-7e15-a4fd-7c08473b25f2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_019caf84-96f3-79cb-9f31-b3887f687299" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019caf84-96f3-75cc-96b1-b515d94dbb89" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_019caf84-96f3-79cb-9f31-b3887f687299" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_019caf84-96f3-794a-a7f6-3ab7e4ed4f92" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_019caf84-96f3-79cb-9f31-b3887f687299" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_019caf84-96f3-794a-a7f6-3ab7e4ed4f92" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_019caf84-96f3-7751-a7e2-f313290ae7d1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_019caf84-96f3-79cb-9f31-b3887f687299" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_019caf84-96f3-7751-a7e2-f313290ae7d1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_019caf84-96f3-77e5-8189-b79894ab532b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_019caf84-96f3-79cb-9f31-b3887f687299" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_019caf84-96f3-77e5-8189-b79894ab532b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_019caf84-96f3-7e2b-a11f-f4bcfbb96779" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_019caf84-96f3-79cb-9f31-b3887f687299" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_019caf84-96f3-7e2b-a11f-f4bcfbb96779" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsCanceledInPeriod_019caf84-96f3-7b26-979f-d9a505b4e01e" xlink:href="vici-20260331.xsd#vici_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsCanceledInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_019caf84-96f3-79cb-9f31-b3887f687299" xlink:to="loc_vici_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsCanceledInPeriod_019caf84-96f3-7b26-979f-d9a505b4e01e" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_019caf84-96f3-7944-a943-239bcce88077" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_019caf84-96f3-758e-a759-67f6891f13fd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019caf84-96f3-75cc-96b1-b515d94dbb89" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_019caf84-96f3-758e-a759-67f6891f13fd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_019caf84-96f3-73bd-ae40-975d3336d247" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_019caf84-96f3-758e-a759-67f6891f13fd" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_019caf84-96f3-73bd-ae40-975d3336d247" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_019caf84-96f3-7884-b585-590f4a2eddc3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_019caf84-96f3-758e-a759-67f6891f13fd" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_019caf84-96f3-7884-b585-590f4a2eddc3" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_019caf84-96f3-73e6-9d06-d37eea6e9ba0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_019caf84-96f3-758e-a759-67f6891f13fd" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_019caf84-96f3-73e6-9d06-d37eea6e9ba0" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_019caf84-96f3-7084-a42b-851241fb9b11" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_019caf84-96f3-758e-a759-67f6891f13fd" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_019caf84-96f3-7084-a42b-851241fb9b11" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsCanceledWeightedAverageGrantDateFairValue_019caf84-96f3-709e-a3d0-7991fb01e9b4" xlink:href="vici-20260331.xsd#vici_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsCanceledWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_019caf84-96f3-758e-a759-67f6891f13fd" xlink:to="loc_vici_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsCanceledWeightedAverageGrantDateFairValue_019caf84-96f3-709e-a3d0-7991fb01e9b4" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_019caf84-96f3-7e4b-95da-c9a894d79665" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
  </link:definitionLink>
</link:linkbase>
