<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:ns2="http://www.sec.gov/edgar/common">
    <headerData>
        <submissionType>144</submissionType>
        <filerInfo>
            <filer>
                <filerCredentials>
                    <cik>0001755110</cik>
                    <ccc>XXXXXXXX</ccc>
                </filerCredentials>
            </filer>
            <liveTestFlag>LIVE</liveTestFlag>



        </filerInfo>
    </headerData>
    <formData>
        <issuerInfo>
            <issuerCik>0001746109</issuerCik>
            <issuerName>Bank First Corp</issuerName>
            <secFileNumber>001-38676</secFileNumber>
            <issuerAddress>
                <ns2:street1>402 North Eighth Street</ns2:street1>
                <ns2:city>Manitowoc</ns2:city>
                <ns2:stateOrCountry>WI</ns2:stateOrCountry>
                <ns2:zipCode>54221</ns2:zipCode>
            </issuerAddress>
            <issuerContactPhone>(920) 652-3100</issuerContactPhone>
            <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>DAVID R SACHSE &amp; SANDRA J SACHSE LIVING TRUST OF 1999</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
            <relationshipsToIssuer>
                <relationshipToIssuer>Former Independent Director</relationshipToIssuer>
            </relationshipsToIssuer>
        </issuerInfo>
        <securitiesInformation>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <brokerOrMarketmakerDetails>
                <name>Morgan Stanley Smith Barney LLC Executive Financial Services</name>
                <address>
                    <ns2:street1>1 New York Plaza</ns2:street1>
                    <ns2:street2>8th Floor</ns2:street2>
                    <ns2:city>New York</ns2:city>
                    <ns2:stateOrCountry>NY</ns2:stateOrCountry>
                    <ns2:zipCode>10004</ns2:zipCode>
                </address>
            </brokerOrMarketmakerDetails>
            <noOfUnitsSold>1000</noOfUnitsSold>
            <aggregateMarketValue>92973.20</aggregateMarketValue>
            <noOfUnitsOutstanding>10013737</noOfUnitsOutstanding>
            <approxSaleDate>08/29/2024</approxSaleDate>
            <securitiesExchangeName>NASDAQ</securitiesExchangeName>
        </securitiesInformation>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>07/23/2012</acquiredDate>
            <natureOfAcquisitionTransaction>Open Market Purchase</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Open Market</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>1000</amountOfSecuritiesAcquired>
            <paymentDate>07/23/2012</paymentDate>
            <natureOfPayment>Cash</natureOfPayment>
        </securitiesToBeSold>
        <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
        <noticeSignature>
            <noticeDate>08/29/2024</noticeDate>
            <planAdoptionDates/>
            <signature>/s/ David R. Sachse Trustee</signature>
        </noticeSignature>
    </formData>
</edgarSubmission>
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144
0001755110
XXXXXXXX
LIVE
0001746109
Bank First Corp
001-38676
402 North Eighth Street
Manitowoc
WI
54221
(920) 652-3100
DAVID R SACHSE & SANDRA J SACHSE LIVING TRUST OF 1999
Former Independent Director
Common
Morgan Stanley Smith Barney LLC Executive Financial Services
1 New York Plaza
8th Floor
New York
NY
10004
1000
92973.20
10013737
08/29/2024
NASDAQ
Common
07/23/2012
Open Market Purchase
Open Market
N
1000
07/23/2012
Cash
Y
08/29/2024
/s/ David R. Sachse Trustee