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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:01a1c753-aa2d-74ed-91b9-4f9f9e6f133f,g:b319a2db-7fc8-4eea-847e-eb16732650b7-->
<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-20261112.xsd#CoverPage"/>
  <link:definitionLink xlink:role="http://viciproperties.com/role/CoverPage" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentInformationLineItems_01a1c753-aa2d-76d5-9780-15dec79c4a26" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentInformationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentInformationTable_01a1c753-aa2d-7e6e-9586-404cbdf5f67b" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentInformationTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_dei_DocumentInformationLineItems_01a1c753-aa2d-76d5-9780-15dec79c4a26" xlink:to="loc_dei_DocumentInformationTable_01a1c753-aa2d-7e6e-9586-404cbdf5f67b" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_01a1c753-aa2d-764d-96c9-dd7e52aa7e16" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_dei_DocumentInformationTable_01a1c753-aa2d-7e6e-9586-404cbdf5f67b" xlink:to="loc_dei_LegalEntityAxis_01a1c753-aa2d-764d-96c9-dd7e52aa7e16" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_01a1c753-aa2d-764d-96c9-dd7e52aa7e16_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_01a1c753-aa2d-764d-96c9-dd7e52aa7e16" xlink:to="loc_dei_EntityDomain_01a1c753-aa2d-764d-96c9-dd7e52aa7e16_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_01a1c753-aa2d-7850-aae2-ecc92425efc1" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_01a1c753-aa2d-764d-96c9-dd7e52aa7e16" xlink:to="loc_dei_EntityDomain_01a1c753-aa2d-7850-aae2-ecc92425efc1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_vici_VICIPropertiesLPMember_01a1c753-aa2d-778a-a4a7-bd86f06536f2" xlink:href="vici-20261112.xsd#vici_VICIPropertiesLPMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_01a1c753-aa2d-7850-aae2-ecc92425efc1" xlink:to="loc_vici_VICIPropertiesLPMember_01a1c753-aa2d-778a-a4a7-bd86f06536f2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_01a1c753-aa2d-7908-9080-75948ed07087" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentType"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_01a1c753-aa2d-76d5-9780-15dec79c4a26" xlink:to="loc_dei_DocumentType_01a1c753-aa2d-7908-9080-75948ed07087" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_01a1c753-aa2d-774d-a737-563a78eaa1bc" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentPeriodEndDate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_01a1c753-aa2d-76d5-9780-15dec79c4a26" xlink:to="loc_dei_DocumentPeriodEndDate_01a1c753-aa2d-774d-a737-563a78eaa1bc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_01a1c753-aa2d-78ce-aab6-13393f9b3211" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityRegistrantName"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_01a1c753-aa2d-76d5-9780-15dec79c4a26" xlink:to="loc_dei_EntityRegistrantName_01a1c753-aa2d-78ce-aab6-13393f9b3211" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_01a1c753-aa2d-7c7f-b791-5658d60e294e" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_01a1c753-aa2d-76d5-9780-15dec79c4a26" xlink:to="loc_dei_EntityIncorporationStateCountryCode_01a1c753-aa2d-7c7f-b791-5658d60e294e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_01a1c753-aa2d-7b36-bee0-975d972a6430" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityFileNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_01a1c753-aa2d-76d5-9780-15dec79c4a26" xlink:to="loc_dei_EntityFileNumber_01a1c753-aa2d-7b36-bee0-975d972a6430" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_01a1c753-aa2d-7cfd-ae35-cb438654e775" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_01a1c753-aa2d-76d5-9780-15dec79c4a26" xlink:to="loc_dei_EntityTaxIdentificationNumber_01a1c753-aa2d-7cfd-ae35-cb438654e775" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_01a1c753-aa2d-7eaf-91c7-a25c3c1e3c0e" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressAddressLine1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_01a1c753-aa2d-76d5-9780-15dec79c4a26" xlink:to="loc_dei_EntityAddressAddressLine1_01a1c753-aa2d-7eaf-91c7-a25c3c1e3c0e" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_01a1c753-aa2d-723e-a09c-6a2f4f09e41b" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressCityOrTown"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_01a1c753-aa2d-76d5-9780-15dec79c4a26" xlink:to="loc_dei_EntityAddressCityOrTown_01a1c753-aa2d-723e-a09c-6a2f4f09e41b" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_01a1c753-aa2d-7dc9-963e-d597f6dc66f3" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressStateOrProvince"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_01a1c753-aa2d-76d5-9780-15dec79c4a26" xlink:to="loc_dei_EntityAddressStateOrProvince_01a1c753-aa2d-7dc9-963e-d597f6dc66f3" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_01a1c753-aa2d-7296-a2bf-7486e9a47778" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressPostalZipCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_01a1c753-aa2d-76d5-9780-15dec79c4a26" xlink:to="loc_dei_EntityAddressPostalZipCode_01a1c753-aa2d-7296-a2bf-7486e9a47778" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_01a1c753-aa2d-78c9-a9c6-7ccfa9dd71ae" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_CityAreaCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_01a1c753-aa2d-76d5-9780-15dec79c4a26" xlink:to="loc_dei_CityAreaCode_01a1c753-aa2d-78c9-a9c6-7ccfa9dd71ae" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_01a1c753-aa2d-73dd-b9db-7a7e0fe6a9eb" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LocalPhoneNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_01a1c753-aa2d-76d5-9780-15dec79c4a26" xlink:to="loc_dei_LocalPhoneNumber_01a1c753-aa2d-73dd-b9db-7a7e0fe6a9eb" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_WrittenCommunications_01a1c753-aa2d-70ae-8a9a-b2f89c8e692e" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_WrittenCommunications"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_01a1c753-aa2d-76d5-9780-15dec79c4a26" xlink:to="loc_dei_WrittenCommunications_01a1c753-aa2d-70ae-8a9a-b2f89c8e692e" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SolicitingMaterial_01a1c753-aa2d-7040-b1e6-66e543c863b5" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_SolicitingMaterial"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_01a1c753-aa2d-76d5-9780-15dec79c4a26" xlink:to="loc_dei_SolicitingMaterial_01a1c753-aa2d-7040-b1e6-66e543c863b5" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementTenderOffer_01a1c753-aa2d-7eb7-8a79-b02e1091ba82" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_PreCommencementTenderOffer"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_01a1c753-aa2d-76d5-9780-15dec79c4a26" xlink:to="loc_dei_PreCommencementTenderOffer_01a1c753-aa2d-7eb7-8a79-b02e1091ba82" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementIssuerTenderOffer_01a1c753-aa2d-721f-90fa-652530ffdb95" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_PreCommencementIssuerTenderOffer"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_01a1c753-aa2d-76d5-9780-15dec79c4a26" xlink:to="loc_dei_PreCommencementIssuerTenderOffer_01a1c753-aa2d-721f-90fa-652530ffdb95" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_01a1c753-aa2d-7bf5-9e9c-9368e33e0049" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_Security12bTitle"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_01a1c753-aa2d-76d5-9780-15dec79c4a26" xlink:to="loc_dei_Security12bTitle_01a1c753-aa2d-7bf5-9e9c-9368e33e0049" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_01a1c753-aa2d-7b62-a442-16796d7dcba1" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_TradingSymbol"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_01a1c753-aa2d-76d5-9780-15dec79c4a26" xlink:to="loc_dei_TradingSymbol_01a1c753-aa2d-7b62-a442-16796d7dcba1" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_01a1c753-aa2d-7cb0-9ecf-c3c516a6b769" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_SecurityExchangeName"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_01a1c753-aa2d-76d5-9780-15dec79c4a26" xlink:to="loc_dei_SecurityExchangeName_01a1c753-aa2d-7cb0-9ecf-c3c516a6b769" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_01a1c753-aa2d-7b79-b56a-280f844804ce" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_01a1c753-aa2d-76d5-9780-15dec79c4a26" xlink:to="loc_dei_EntityEmergingGrowthCompany_01a1c753-aa2d-7b79-b56a-280f844804ce" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_01a1c753-aa2d-7b6d-bbd7-77dc2cff50ac" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityCentralIndexKey"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_01a1c753-aa2d-76d5-9780-15dec79c4a26" xlink:to="loc_dei_EntityCentralIndexKey_01a1c753-aa2d-7b6d-bbd7-77dc2cff50ac" xlink:type="arc" order="20"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_01a1c753-aa2d-7db0-9b7b-843d6743ff11" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_AmendmentFlag"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_01a1c753-aa2d-76d5-9780-15dec79c4a26" xlink:to="loc_dei_AmendmentFlag_01a1c753-aa2d-7db0-9b7b-843d6743ff11" xlink:type="arc" order="21"/>
  </link:definitionLink>
</link:linkbase>
