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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2024 Workiva-->
<!--r:1f3c1e55-88f8-4d87-bd4f-5998e173f3e3,g:1b1b3022-86b7-4803-a836-7bc5124d3315-->
<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.acnb.com/role/Cover" xlink:type="simple" xlink:href="acnb-20241218.xsd#Cover"/>
  <link:presentationLink xlink:role="http://www.acnb.com/role/Cover" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_CoverAbstract_a50a434f-4448-494a-80dc-c934e2168298" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_CoverAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_348c2ff6-5b99-4bd7-b75f-9661adada5f7" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentType"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_a50a434f-4448-494a-80dc-c934e2168298" xlink:to="loc_dei_DocumentType_348c2ff6-5b99-4bd7-b75f-9661adada5f7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_ba37387e-cedf-4ff9-8d7d-ea6d804aeceb" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentPeriodEndDate"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_a50a434f-4448-494a-80dc-c934e2168298" xlink:to="loc_dei_DocumentPeriodEndDate_ba37387e-cedf-4ff9-8d7d-ea6d804aeceb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_f5a21330-20e8-467a-bdd3-18d21e760ca7" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityRegistrantName"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_a50a434f-4448-494a-80dc-c934e2168298" xlink:to="loc_dei_EntityRegistrantName_f5a21330-20e8-467a-bdd3-18d21e760ca7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_eb5e5523-9895-4049-aef4-09435d9648a6" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_a50a434f-4448-494a-80dc-c934e2168298" xlink:to="loc_dei_EntityIncorporationStateCountryCode_eb5e5523-9895-4049-aef4-09435d9648a6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_a11b15f4-c552-4d6d-b70c-d470ae45c339" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityFileNumber"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_a50a434f-4448-494a-80dc-c934e2168298" xlink:to="loc_dei_EntityFileNumber_a11b15f4-c552-4d6d-b70c-d470ae45c339" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_7886e2db-97e3-401b-8f65-5ce5e0907432" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_a50a434f-4448-494a-80dc-c934e2168298" xlink:to="loc_dei_EntityTaxIdentificationNumber_7886e2db-97e3-401b-8f65-5ce5e0907432" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_941a13d2-4265-4543-96bb-2734013b7645" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityAddressAddressLine1"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_a50a434f-4448-494a-80dc-c934e2168298" xlink:to="loc_dei_EntityAddressAddressLine1_941a13d2-4265-4543-96bb-2734013b7645" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_765cf4f4-a01c-482f-b37b-f31c1d5aab3e" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityAddressCityOrTown"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_a50a434f-4448-494a-80dc-c934e2168298" xlink:to="loc_dei_EntityAddressCityOrTown_765cf4f4-a01c-482f-b37b-f31c1d5aab3e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_a40c7352-2ad1-4bbd-9f9f-96c14967561c" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityAddressStateOrProvince"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_a50a434f-4448-494a-80dc-c934e2168298" xlink:to="loc_dei_EntityAddressStateOrProvince_a40c7352-2ad1-4bbd-9f9f-96c14967561c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_7438e412-20ff-4367-b8ee-0bb458e40ca8" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityAddressPostalZipCode"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_a50a434f-4448-494a-80dc-c934e2168298" xlink:to="loc_dei_EntityAddressPostalZipCode_7438e412-20ff-4367-b8ee-0bb458e40ca8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_636d7ad1-e9a4-4ff5-a8c4-e9b94c1e913d" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_CityAreaCode"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_a50a434f-4448-494a-80dc-c934e2168298" xlink:to="loc_dei_CityAreaCode_636d7ad1-e9a4-4ff5-a8c4-e9b94c1e913d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_d1bb198d-7f44-4d3c-b1bf-6aea130cce01" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_LocalPhoneNumber"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_a50a434f-4448-494a-80dc-c934e2168298" xlink:to="loc_dei_LocalPhoneNumber_d1bb198d-7f44-4d3c-b1bf-6aea130cce01" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_WrittenCommunications_da5f4dfa-69eb-4d1b-9cf9-da7826bd3106" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_WrittenCommunications"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_a50a434f-4448-494a-80dc-c934e2168298" xlink:to="loc_dei_WrittenCommunications_da5f4dfa-69eb-4d1b-9cf9-da7826bd3106" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SolicitingMaterial_a08e7a61-9653-45d3-a1cc-39f93bfc8bea" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_SolicitingMaterial"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_a50a434f-4448-494a-80dc-c934e2168298" xlink:to="loc_dei_SolicitingMaterial_a08e7a61-9653-45d3-a1cc-39f93bfc8bea" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementTenderOffer_e5988b7e-2290-42c3-afe6-47b8f5edc41a" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_PreCommencementTenderOffer"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_a50a434f-4448-494a-80dc-c934e2168298" xlink:to="loc_dei_PreCommencementTenderOffer_e5988b7e-2290-42c3-afe6-47b8f5edc41a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementIssuerTenderOffer_35097cc5-9e83-4988-9dd3-0983ae7a5b04" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_PreCommencementIssuerTenderOffer"/>
    <link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_a50a434f-4448-494a-80dc-c934e2168298" xlink:to="loc_dei_PreCommencementIssuerTenderOffer_35097cc5-9e83-4988-9dd3-0983ae7a5b04" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_712a6144-8c15-448c-bc79-0b16ff9c508c" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:presentationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_a50a434f-4448-494a-80dc-c934e2168298" xlink:to="loc_dei_EntityEmergingGrowthCompany_712a6144-8c15-448c-bc79-0b16ff9c508c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_4f6ff2a1-4905-4021-a2c1-f7444041a35e" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_Security12bTitle"/>
    <link:presentationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_a50a434f-4448-494a-80dc-c934e2168298" xlink:to="loc_dei_Security12bTitle_4f6ff2a1-4905-4021-a2c1-f7444041a35e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_43ac8a87-b1ed-4968-b24f-33f47659dc76" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_TradingSymbol"/>
    <link:presentationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_a50a434f-4448-494a-80dc-c934e2168298" xlink:to="loc_dei_TradingSymbol_43ac8a87-b1ed-4968-b24f-33f47659dc76" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_dfb6807a-69ab-4a44-a4a3-5140c3c83581" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_SecurityExchangeName"/>
    <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_a50a434f-4448-494a-80dc-c934e2168298" xlink:to="loc_dei_SecurityExchangeName_dfb6807a-69ab-4a44-a4a3-5140c3c83581" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_2076012d-481e-4522-a77b-d80db0c3c11a" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_AmendmentFlag"/>
    <link:presentationArc order="21" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_a50a434f-4448-494a-80dc-c934e2168298" xlink:to="loc_dei_AmendmentFlag_2076012d-481e-4522-a77b-d80db0c3c11a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_8170aea7-4ca5-4dcc-b9a2-bfc7d1708d59" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityCentralIndexKey"/>
    <link:presentationArc order="22" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_a50a434f-4448-494a-80dc-c934e2168298" xlink:to="loc_dei_EntityCentralIndexKey_8170aea7-4ca5-4dcc-b9a2-bfc7d1708d59" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
</link:linkbase>
