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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019e17f0-cd5a-76a4-8bf7-60398880bb18,g:0c94ea38-e518-4cb9-a0e3-71e9b20a046b-->
<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" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:roleRef roleURI="http://www.ugicorp.com/role/CoverPage" xlink:type="simple" xlink:href="ugi-20260511.xsd#CoverPage"/>
  <link:presentationLink xlink:role="http://www.ugicorp.com/role/CoverPage" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_CoverAbstract_019e17f0-cd5a-7603-84ac-f3a882559b43" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_CoverAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_019e17f0-cd5a-752b-a2bd-38b8c910c50f" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentType"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e17f0-cd5a-7603-84ac-f3a882559b43" xlink:to="loc_dei_DocumentType_019e17f0-cd5a-752b-a2bd-38b8c910c50f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_019e17f0-cd5a-78e1-be59-97bb262b5e5c" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentPeriodEndDate"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e17f0-cd5a-7603-84ac-f3a882559b43" xlink:to="loc_dei_DocumentPeriodEndDate_019e17f0-cd5a-78e1-be59-97bb262b5e5c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_019e17f0-cd5a-75fb-8f31-96a4bf356981" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityRegistrantName"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e17f0-cd5a-7603-84ac-f3a882559b43" xlink:to="loc_dei_EntityRegistrantName_019e17f0-cd5a-75fb-8f31-96a4bf356981" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_019e17f0-cd5a-7322-b77a-e58353861a54" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e17f0-cd5a-7603-84ac-f3a882559b43" xlink:to="loc_dei_EntityIncorporationStateCountryCode_019e17f0-cd5a-7322-b77a-e58353861a54" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_019e17f0-cd5a-775a-b328-2ba5711b5e38" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityFileNumber"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e17f0-cd5a-7603-84ac-f3a882559b43" xlink:to="loc_dei_EntityFileNumber_019e17f0-cd5a-775a-b328-2ba5711b5e38" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_019e17f0-cd5a-781d-8fc9-0cffac34c8b7" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e17f0-cd5a-7603-84ac-f3a882559b43" xlink:to="loc_dei_EntityTaxIdentificationNumber_019e17f0-cd5a-781d-8fc9-0cffac34c8b7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_019e17f0-cd5a-7a6d-aba7-7c1ca5848fba" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressAddressLine1"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e17f0-cd5a-7603-84ac-f3a882559b43" xlink:to="loc_dei_EntityAddressAddressLine1_019e17f0-cd5a-7a6d-aba7-7c1ca5848fba" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_019e17f0-cd5a-780b-8d78-a3c90bbfab2f" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressCityOrTown"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e17f0-cd5a-7603-84ac-f3a882559b43" xlink:to="loc_dei_EntityAddressCityOrTown_019e17f0-cd5a-780b-8d78-a3c90bbfab2f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_019e17f0-cd5a-7c58-8fef-33a3a0c923b8" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressStateOrProvince"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e17f0-cd5a-7603-84ac-f3a882559b43" xlink:to="loc_dei_EntityAddressStateOrProvince_019e17f0-cd5a-7c58-8fef-33a3a0c923b8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_019e17f0-cd5a-725f-bb35-8ade453521d5" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressPostalZipCode"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e17f0-cd5a-7603-84ac-f3a882559b43" xlink:to="loc_dei_EntityAddressPostalZipCode_019e17f0-cd5a-725f-bb35-8ade453521d5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_019e17f0-cd5a-7305-bc20-274d5c9d6ffa" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_CityAreaCode"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e17f0-cd5a-7603-84ac-f3a882559b43" xlink:to="loc_dei_CityAreaCode_019e17f0-cd5a-7305-bc20-274d5c9d6ffa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_019e17f0-cd5a-7fd3-b787-fa70e87ee72b" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_LocalPhoneNumber"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e17f0-cd5a-7603-84ac-f3a882559b43" xlink:to="loc_dei_LocalPhoneNumber_019e17f0-cd5a-7fd3-b787-fa70e87ee72b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_WrittenCommunications_019e17f0-cd5a-7ea3-aa09-3b04f6efbccf" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_WrittenCommunications"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e17f0-cd5a-7603-84ac-f3a882559b43" xlink:to="loc_dei_WrittenCommunications_019e17f0-cd5a-7ea3-aa09-3b04f6efbccf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SolicitingMaterial_019e17f0-cd5a-75ee-a5af-372649f3627b" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_SolicitingMaterial"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e17f0-cd5a-7603-84ac-f3a882559b43" xlink:to="loc_dei_SolicitingMaterial_019e17f0-cd5a-75ee-a5af-372649f3627b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementTenderOffer_019e17f0-cd5a-7f69-9864-627e865c1fdf" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_PreCommencementTenderOffer"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e17f0-cd5a-7603-84ac-f3a882559b43" xlink:to="loc_dei_PreCommencementTenderOffer_019e17f0-cd5a-7f69-9864-627e865c1fdf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementIssuerTenderOffer_019e17f0-cd5a-79bd-8c49-2a584ef2037e" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_PreCommencementIssuerTenderOffer"/>
    <link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e17f0-cd5a-7603-84ac-f3a882559b43" xlink:to="loc_dei_PreCommencementIssuerTenderOffer_019e17f0-cd5a-79bd-8c49-2a584ef2037e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_019e17f0-cd5a-72d7-a1d2-c7ef7acf2e16" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_Security12bTitle"/>
    <link:presentationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e17f0-cd5a-7603-84ac-f3a882559b43" xlink:to="loc_dei_Security12bTitle_019e17f0-cd5a-72d7-a1d2-c7ef7acf2e16" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_019e17f0-cd5a-7dab-84b3-d57b65bc9fa6" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_TradingSymbol"/>
    <link:presentationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e17f0-cd5a-7603-84ac-f3a882559b43" xlink:to="loc_dei_TradingSymbol_019e17f0-cd5a-7dab-84b3-d57b65bc9fa6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_019e17f0-cd5a-7ecb-a580-3e01990a9eeb" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_SecurityExchangeName"/>
    <link:presentationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e17f0-cd5a-7603-84ac-f3a882559b43" xlink:to="loc_dei_SecurityExchangeName_019e17f0-cd5a-7ecb-a580-3e01990a9eeb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_019e17f0-cd5a-7265-8f14-b2dbf2d8ec47" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e17f0-cd5a-7603-84ac-f3a882559b43" xlink:to="loc_dei_EntityEmergingGrowthCompany_019e17f0-cd5a-7265-8f14-b2dbf2d8ec47" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_019e17f0-cd5a-7a22-9776-9a0b2e484409" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityCentralIndexKey"/>
    <link:presentationArc order="21" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e17f0-cd5a-7603-84ac-f3a882559b43" xlink:to="loc_dei_EntityCentralIndexKey_019e17f0-cd5a-7a22-9776-9a0b2e484409" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_019e17f0-cd5a-7f13-b30b-ea054cdb6902" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AmendmentFlag"/>
    <link:presentationArc order="22" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e17f0-cd5a-7603-84ac-f3a882559b43" xlink:to="loc_dei_AmendmentFlag_019e17f0-cd5a-7f13-b30b-ea054cdb6902" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
</link:linkbase>
