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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019e412d-550a-7148-b630-661d339c16cc,g:4ac250de-cc97-4c2c-ad8e-7b449363a43d-->
<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://bayfirstfinancial.com/role/Cover" xlink:type="simple" xlink:href="bafn-20260813.xsd#Cover"/>
  <link:presentationLink xlink:role="http://bayfirstfinancial.com/role/Cover" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_CoverAbstract_019e412d-550a-7d0c-8b06-ddeceb7da32f" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_CoverAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_019e412d-550a-740f-9f9e-f42f73f0bad1" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentType"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e412d-550a-7d0c-8b06-ddeceb7da32f" xlink:to="loc_dei_DocumentType_019e412d-550a-740f-9f9e-f42f73f0bad1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_019e412d-550a-76fd-966d-9d0f21ce0b76" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentPeriodEndDate"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e412d-550a-7d0c-8b06-ddeceb7da32f" xlink:to="loc_dei_DocumentPeriodEndDate_019e412d-550a-76fd-966d-9d0f21ce0b76" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_019e412d-550a-78e7-8a55-4b3f9a3ac622" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityRegistrantName"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e412d-550a-7d0c-8b06-ddeceb7da32f" xlink:to="loc_dei_EntityRegistrantName_019e412d-550a-78e7-8a55-4b3f9a3ac622" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_019e412d-550a-78eb-b8f2-fb090cb0d21f" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e412d-550a-7d0c-8b06-ddeceb7da32f" xlink:to="loc_dei_EntityIncorporationStateCountryCode_019e412d-550a-78eb-b8f2-fb090cb0d21f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_019e412d-550a-760d-9c5b-6c8d02b9a8f9" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityFileNumber"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e412d-550a-7d0c-8b06-ddeceb7da32f" xlink:to="loc_dei_EntityFileNumber_019e412d-550a-760d-9c5b-6c8d02b9a8f9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_019e412d-550a-79a9-8706-42f53f708230" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e412d-550a-7d0c-8b06-ddeceb7da32f" xlink:to="loc_dei_EntityTaxIdentificationNumber_019e412d-550a-79a9-8706-42f53f708230" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_019e412d-550a-7849-896b-085dc11a0139" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressAddressLine1"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e412d-550a-7d0c-8b06-ddeceb7da32f" xlink:to="loc_dei_EntityAddressAddressLine1_019e412d-550a-7849-896b-085dc11a0139" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_019e412d-550a-7e2c-b85a-0b4b62cfbb58" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressCityOrTown"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e412d-550a-7d0c-8b06-ddeceb7da32f" xlink:to="loc_dei_EntityAddressCityOrTown_019e412d-550a-7e2c-b85a-0b4b62cfbb58" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_019e412d-550a-78ac-bed7-e1840dc4c824" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressStateOrProvince"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e412d-550a-7d0c-8b06-ddeceb7da32f" xlink:to="loc_dei_EntityAddressStateOrProvince_019e412d-550a-78ac-bed7-e1840dc4c824" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_019e412d-550a-79a3-b8ae-67ab108f2f65" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressPostalZipCode"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e412d-550a-7d0c-8b06-ddeceb7da32f" xlink:to="loc_dei_EntityAddressPostalZipCode_019e412d-550a-79a3-b8ae-67ab108f2f65" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_019e412d-550a-7511-8ce7-e8062492b35b" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_CityAreaCode"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e412d-550a-7d0c-8b06-ddeceb7da32f" xlink:to="loc_dei_CityAreaCode_019e412d-550a-7511-8ce7-e8062492b35b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_019e412d-550a-701e-8fd7-a2578a44fa5f" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LocalPhoneNumber"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e412d-550a-7d0c-8b06-ddeceb7da32f" xlink:to="loc_dei_LocalPhoneNumber_019e412d-550a-701e-8fd7-a2578a44fa5f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_WrittenCommunications_019e412d-550a-7708-b071-68c9d0c1ee63" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_WrittenCommunications"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e412d-550a-7d0c-8b06-ddeceb7da32f" xlink:to="loc_dei_WrittenCommunications_019e412d-550a-7708-b071-68c9d0c1ee63" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SolicitingMaterial_019e412d-550a-7e98-b209-ae67b9167dc4" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_SolicitingMaterial"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e412d-550a-7d0c-8b06-ddeceb7da32f" xlink:to="loc_dei_SolicitingMaterial_019e412d-550a-7e98-b209-ae67b9167dc4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementTenderOffer_019e412d-550a-7c80-a722-9c447652f585" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_PreCommencementTenderOffer"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e412d-550a-7d0c-8b06-ddeceb7da32f" xlink:to="loc_dei_PreCommencementTenderOffer_019e412d-550a-7c80-a722-9c447652f585" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementIssuerTenderOffer_019e412d-550a-747b-aa98-b9aa8fc6c588" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_PreCommencementIssuerTenderOffer"/>
    <link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e412d-550a-7d0c-8b06-ddeceb7da32f" xlink:to="loc_dei_PreCommencementIssuerTenderOffer_019e412d-550a-747b-aa98-b9aa8fc6c588" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_019e412d-550a-7128-b750-5f18b012f63c" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_Security12bTitle"/>
    <link:presentationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e412d-550a-7d0c-8b06-ddeceb7da32f" xlink:to="loc_dei_Security12bTitle_019e412d-550a-7128-b750-5f18b012f63c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_019e412d-550a-7116-8871-f775c35780d8" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_TradingSymbol"/>
    <link:presentationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e412d-550a-7d0c-8b06-ddeceb7da32f" xlink:to="loc_dei_TradingSymbol_019e412d-550a-7116-8871-f775c35780d8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_019e412d-550a-7a6c-b557-523c5793b9d4" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_SecurityExchangeName"/>
    <link:presentationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e412d-550a-7d0c-8b06-ddeceb7da32f" xlink:to="loc_dei_SecurityExchangeName_019e412d-550a-7a6c-b557-523c5793b9d4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_019e412d-550a-7d73-8179-a857587526ec" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e412d-550a-7d0c-8b06-ddeceb7da32f" xlink:to="loc_dei_EntityEmergingGrowthCompany_019e412d-550a-7d73-8179-a857587526ec" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityExTransitionPeriod_019e412d-550a-71d1-85a2-9c829cce8136" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityExTransitionPeriod"/>
    <link:presentationArc order="21" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e412d-550a-7d0c-8b06-ddeceb7da32f" xlink:to="loc_dei_EntityExTransitionPeriod_019e412d-550a-71d1-85a2-9c829cce8136" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_019e412d-550a-7d29-a21e-e8111222ebd7" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityCentralIndexKey"/>
    <link:presentationArc order="22" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e412d-550a-7d0c-8b06-ddeceb7da32f" xlink:to="loc_dei_EntityCentralIndexKey_019e412d-550a-7d29-a21e-e8111222ebd7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_019e412d-550a-7746-953d-9ea8c6edc4e3" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_AmendmentFlag"/>
    <link:presentationArc order="23" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e412d-550a-7d0c-8b06-ddeceb7da32f" xlink:to="loc_dei_AmendmentFlag_019e412d-550a-7746-953d-9ea8c6edc4e3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CurrentFiscalYearEndDate_019e412d-550a-7d21-93e9-04a43c344062" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_CurrentFiscalYearEndDate"/>
    <link:presentationArc order="24" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e412d-550a-7d0c-8b06-ddeceb7da32f" xlink:to="loc_dei_CurrentFiscalYearEndDate_019e412d-550a-7d21-93e9-04a43c344062" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
</link:linkbase>
