<?xml version="1.0" encoding="UTF-8"?><ns2:edgarSubmission xmlns:com="http://www.sec.gov/edgar/common" xmlns:ns2="http://www.sec.gov/edgar/ownership">
    <ns2:headerData>
        <ns2:submissionType>144</ns2:submissionType>
        <ns2:filerInfo>
            <ns2:filer>
                <ns2:filerCredentials>
                    <ns2:cik>0001324015</ns2:cik>
                    <ns2:ccc>XXXXXXXX</ns2:ccc>
                </ns2:filerCredentials>
            </ns2:filer>
            <ns2:liveTestFlag>LIVE</ns2:liveTestFlag>



        </ns2:filerInfo>
    </ns2:headerData>
    <ns2:formData>
        <ns2:issuerInfo>
            <ns2:issuerCik>0000921299</ns2:issuerCik>
            <ns2:issuerName>FibroGen, Inc.</ns2:issuerName>
            <ns2:secFileNumber>001-36740</ns2:secFileNumber>
            <ns2:issuerAddress>
                <com:street1>409 Illinois Street</com:street1>
                <com:city>San Francisco</com:city>
                <com:stateOrCountry>CA</com:stateOrCountry>
                <com:zipCode>94158</com:zipCode>
            </ns2:issuerAddress>
            <ns2:issuerContactPhone>1-415-978-1200</ns2:issuerContactPhone>
            <ns2:nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Jeffrey Henderson</ns2:nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
            <ns2:relationshipsToIssuer>
                <ns2:relationshipToIssuer>Director</ns2:relationshipToIssuer>
            </ns2:relationshipsToIssuer>
        </ns2:issuerInfo>
        <ns2:securitiesInformation>
            <ns2:securitiesClassTitle>Common Stock</ns2:securitiesClassTitle>
            <ns2:brokerOrMarketmakerDetails>
                <ns2:name>Goldman Sachs &amp; Co. LLC</ns2:name>
                <ns2:address>
                    <com:street1>200 West Street</com:street1>
                    <com:city>New York</com:city>
                    <com:stateOrCountry>NY</com:stateOrCountry>
                    <com:zipCode>10282</com:zipCode>
                </ns2:address>
            </ns2:brokerOrMarketmakerDetails>
            <ns2:noOfUnitsSold>2000</ns2:noOfUnitsSold>
            <ns2:aggregateMarketValue>2120</ns2:aggregateMarketValue>
            <ns2:noOfUnitsOutstanding>98210168</ns2:noOfUnitsOutstanding>
            <ns2:approxSaleDate>09/01/2023</ns2:approxSaleDate>
            <ns2:securitiesExchangeName>NASD</ns2:securitiesExchangeName>
        </ns2:securitiesInformation>
        <ns2:securitiesToBeSold>
            <ns2:securitiesClassTitle>Common Stock</ns2:securitiesClassTitle>
            <ns2:acquiredDate>06/04/2020</ns2:acquiredDate>
            <ns2:natureOfAcquisitionTransaction>Acquired as compensation -- Restricted Stock Units</ns2:natureOfAcquisitionTransaction>
            <ns2:nameOfPersonfromWhomAcquired>FibroGen Inc</ns2:nameOfPersonfromWhomAcquired>
            <ns2:isGiftTransaction>N</ns2:isGiftTransaction>
            <ns2:amountOfSecuritiesAcquired>2000</ns2:amountOfSecuritiesAcquired>
            <ns2:paymentDate>06/04/2020</ns2:paymentDate>
            <ns2:natureOfPayment>Compensation</ns2:natureOfPayment>
        </ns2:securitiesToBeSold>
        <ns2:nothingToReportFlagOnSecuritiesSoldInPast3Months>N</ns2:nothingToReportFlagOnSecuritiesSoldInPast3Months>
        <ns2:securitiesSoldInPast3Months>
            <ns2:sellerDetails>
                <ns2:name>Jeffrey Henderson</ns2:name>
                <ns2:address>
                    <com:street1>409 Illinois Street</com:street1>
                    <com:city>San Francisco</com:city>
                    <com:stateOrCountry>CA</com:stateOrCountry>
                    <com:zipCode>94158</com:zipCode>
                </ns2:address>
            </ns2:sellerDetails>
            <ns2:securitiesClassTitle>Common Stock</ns2:securitiesClassTitle>
            <ns2:saleDate>06/08/2023</ns2:saleDate>
            <ns2:amountOfSecuritiesSold>7000</ns2:amountOfSecuritiesSold>
            <ns2:grossProceeds>122180.8</ns2:grossProceeds>
        </ns2:securitiesSoldInPast3Months>
        <ns2:securitiesSoldInPast3Months>
            <ns2:sellerDetails>
                <ns2:name>Jeffrey Henderson</ns2:name>
                <ns2:address>
                    <com:street1>409 Illinois Street</com:street1>
                    <com:city>San Francisco</com:city>
                    <com:stateOrCountry>CA</com:stateOrCountry>
                    <com:zipCode>94158</com:zipCode>
                </ns2:address>
            </ns2:sellerDetails>
            <ns2:securitiesClassTitle>Common Stock</ns2:securitiesClassTitle>
            <ns2:saleDate>07/11/2023</ns2:saleDate>
            <ns2:amountOfSecuritiesSold>2000</ns2:amountOfSecuritiesSold>
            <ns2:grossProceeds>5360</ns2:grossProceeds>
        </ns2:securitiesSoldInPast3Months>
        <ns2:securitiesSoldInPast3Months>
            <ns2:sellerDetails>
                <ns2:name>Jeffrey Henderson</ns2:name>
                <ns2:address>
                    <com:street1>409 Illinois Street</com:street1>
                    <com:city>San Francisco</com:city>
                    <com:stateOrCountry>CA</com:stateOrCountry>
                    <com:zipCode>94158</com:zipCode>
                </ns2:address>
            </ns2:sellerDetails>
            <ns2:securitiesClassTitle>Common Stock</ns2:securitiesClassTitle>
            <ns2:saleDate>08/04/2023</ns2:saleDate>
            <ns2:amountOfSecuritiesSold>2000</ns2:amountOfSecuritiesSold>
            <ns2:grossProceeds>2100</ns2:grossProceeds>
        </ns2:securitiesSoldInPast3Months>
        <ns2:remarks>The sales of shares set forth herein are made in connection with a selling plan dated 03-March-2023 that is intended to comply with Rule 10b5-1(c).</ns2:remarks>
        <ns2:noticeSignature>
            <ns2:noticeDate>09/01/2023</ns2:noticeDate>
            <ns2:planAdoptionDates>
                <ns2:planAdoptionDate>03/03/2023</ns2:planAdoptionDate>
            </ns2:planAdoptionDates>
            <ns2:signature>Goldman Sachs &amp; Co. LLC on behalf of Jeffrey Henderson</ns2:signature>
        </ns2:noticeSignature>
    </ns2:formData>
</ns2:edgarSubmission>
[{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 6139}]
144
0001324015
XXXXXXXX
LIVE
0000921299
FibroGen, Inc.
001-36740
409 Illinois Street
San Francisco
CA
94158
1-415-978-1200
Jeffrey Henderson
Director
Common Stock
Goldman Sachs & Co. LLC
200 West Street
New York
NY
10282
2000
2120
98210168
09/01/2023
NASD
Common Stock
06/04/2020
Acquired as compensation -- Restricted Stock Units
FibroGen Inc
N
2000
06/04/2020
Compensation
N
Jeffrey Henderson
409 Illinois Street
San Francisco
CA
94158
Common Stock
06/08/2023
7000
122180.8
Jeffrey Henderson
409 Illinois Street
San Francisco
CA
94158
Common Stock
07/11/2023
2000
5360
Jeffrey Henderson
409 Illinois Street
San Francisco
CA
94158
Common Stock
08/04/2023
2000
2100
The sales of shares set forth herein are made in connection with a selling plan dated 03-March-2023 that is intended to comply with Rule 10b5-1(c).
09/01/2023
03/03/2023
Goldman Sachs & Co. LLC on behalf of Jeffrey Henderson