<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
  <headerData>
    <submissionType>144</submissionType>
    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0001865503</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>


    </filerInfo>
  </headerData>
  <formData>
    <issuerInfo>
      <issuerCik>0001845257</issuerCik>
      <issuerName>LifeStance Health Group, Inc.</issuerName>
      <secFileNumber>001-40478</secFileNumber>
      <issuerAddress>
        <com:street1>4800 N. SCOTTSDALE ROAD</com:street1>
        <com:street2>SUITE 6000</com:street2>
        <com:city>SCOTTSDALE</com:city>
        <com:stateOrCountry>AZ</com:stateOrCountry>
        <com:zipCode>85251</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>602-767-2100</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Gouk Warren</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Officer</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>Fidelity Brokerage Services LLC</name>
        <address>
          <com:street1>245 summer street</com:street1>
          <com:city>Boston</com:city>
          <com:stateOrCountry>MA</com:stateOrCountry>
          <com:zipCode>02110</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>95984</noOfUnitsSold>
      <aggregateMarketValue>818743.52</aggregateMarketValue>
      <noOfUnitsOutstanding>376773736</noOfUnitsOutstanding>
      <approxSaleDate>06/07/2023</approxSaleDate>
      <securitiesExchangeName>NASDAQ</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>06/09/2022</acquiredDate>
      <natureOfAcquisitionTransaction>stock award</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>LIFESTANCE</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>95984</amountOfSecuritiesAcquired>
      <paymentDate>06/09/2022</paymentDate>
      <natureOfPayment>compensation</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <noticeSignature>
      <noticeDate>06/07/2023</noticeDate>
      <signature>/s/ Audrey Skillern as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Warren Gouk</signature>
    </noticeSignature>
  </formData>
</edgarSubmission>
[{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 2878}]
144
0001865503
XXXXXXXX
LIVE
0001845257
LifeStance Health Group, Inc.
001-40478
4800 N. SCOTTSDALE ROAD
SUITE 6000
SCOTTSDALE
AZ
85251
602-767-2100
Gouk Warren
Officer
Common
Fidelity Brokerage Services LLC
245 summer street
Boston
MA
02110
95984
818743.52
376773736
06/07/2023
NASDAQ
Common
06/09/2022
stock award
LIFESTANCE
N
95984
06/09/2022
compensation
Y
06/07/2023
/s/ Audrey Skillern as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Warren Gouk