<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
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    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0001420987</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>


    </filerInfo>
  </headerData>
  <formData>
    <issuerInfo>
      <issuerCik>0000921299</issuerCik>
      <issuerName>FIBROGEN INC</issuerName>
      <secFileNumber>001-36740</secFileNumber>
      <issuerAddress>
        <com:street1>409 ILLINOIS STREET</com:street1>
        <com:city>SAN FRANCISCO</com:city>
        <com:stateOrCountry>CA</com:stateOrCountry>
        <com:zipCode>94158</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>415-978-1200</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Schoeneck James A</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Director</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>Charles Schwab &amp; Co., Inc.</name>
        <address>
          <com:street1>3000 Schwab Way</com:street1>
          <com:city>Westlake</com:city>
          <com:stateOrCountry>TX</com:stateOrCountry>
          <com:zipCode>76262</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>7100</noOfUnitsSold>
      <aggregateMarketValue>127987.44</aggregateMarketValue>
      <noOfUnitsOutstanding>97582416</noOfUnitsOutstanding>
      <approxSaleDate>06/07/2023</approxSaleDate>
      <securitiesExchangeName>NASDAQ</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>06/04/2020</acquiredDate>
      <natureOfAcquisitionTransaction>RSU Vest</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>7100</amountOfSecuritiesAcquired>
      <paymentDate>06/04/2020</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <remarks>Shares acquired from 6/4/2020 - 5/26/2021. SCHOENECK FAMILY TRUST, JAMES &amp; CYNTHIA SCHOENECK TTEE</remarks>
    <noticeSignature>
      <noticeDate>06/07/2023</noticeDate>
      <planAdoptionDates>
        <planAdoptionDate>03/02/2023</planAdoptionDate>
      </planAdoptionDates>
      <signature>JAMES SCHOENECK</signature>
    </noticeSignature>
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144
0001420987
XXXXXXXX
LIVE
0000921299
FIBROGEN INC
001-36740
409 ILLINOIS STREET
SAN FRANCISCO
CA
94158
415-978-1200
Schoeneck James A
Director
Common
Charles Schwab & Co., Inc.
3000 Schwab Way
Westlake
TX
76262
7100
127987.44
97582416
06/07/2023
NASDAQ
Common
06/04/2020
RSU Vest
Issuer
N
7100
06/04/2020
Compensation
Y
Shares acquired from 6/4/2020 - 5/26/2021. SCHOENECK FAMILY TRUST, JAMES & CYNTHIA SCHOENECK TTEE
06/07/2023
03/02/2023
JAMES SCHOENECK