content: <?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <headerData>
  <submissionType>144</submissionType>
  <filerInfo>
  <filer>
  <filerCredentials>
  <cik>0001857912</cik>
  <ccc>XXXXXXXX</ccc>
  </filerCredentials>
  </filer>
  <liveTestFlag>LIVE</liveTestFlag>
  </filerInfo>
  </headerData>
  <formData>
  <issuerInfo>
  <issuerCik>0001816581</issuerCik>
  <issuerName>Ouster, Inc.</issuerName>
  <secFileNumber>001-39463</secFileNumber>
  <issuerAddress>
  <street1 xmlns="http://www.sec.gov/edgar/common">350 Treat Avenue</street1>
  <city xmlns="http://www.sec.gov/edgar/common">San Francisco</city>
  <stateOrCountry xmlns="http://www.sec.gov/edgar/common">CA</stateOrCountry>
  <zipCode xmlns="http://www.sec.gov/edgar/common">94110</zipCode>
  </issuerAddress>
  <issuerContactPhone>415-949-0108</issuerContactPhone>
  <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Nathan Dickerman</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
  <relationshipsToIssuer>
  <relationshipToIssuer>Officer</relationshipToIssuer>
  </relationshipsToIssuer>
  </issuerInfo>
  <securitiesInformation>
  <securitiesClassTitle>Common Stock</securitiesClassTitle>
  <brokerOrMarketmakerDetails>
  <name>ETRADE FINANCIAL CORPORATION</name>
  <address>
  <street1 xmlns="http://www.sec.gov/edgar/common">3 EDISON DRIVE</street1>
  <city xmlns="http://www.sec.gov/edgar/common">ALPHARETTA</city>
  <stateOrCountry xmlns="http://www.sec.gov/edgar/common">GA</stateOrCountry>
  <zipCode xmlns="http://www.sec.gov/edgar/common">30005</zipCode>
  </address>
  </brokerOrMarketmakerDetails>
  <noOfUnitsSold>4462</noOfUnitsSold>
  <aggregateMarketValue>25076.44</aggregateMarketValue>
  <noOfUnitsOutstanding>38814621</noOfUnitsOutstanding>
  <approxSaleDate>06/12/2023</approxSaleDate>
  <securitiesExchangeName>NYSE</securitiesExchangeName>
  </securitiesInformation>
  <securitiesToBeSold>
  <securitiesClassTitle>Common Stock</securitiesClassTitle>
  <acquiredDate>06/11/2023</acquiredDate>
  <natureOfAcquisitionTransaction>Restricted stock units awarded under incentive award plan</natureOfAcquisitionTransaction>
  <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
  <isGiftTransaction>N</isGiftTransaction>
  <amountOfSecuritiesAcquired>4036</amountOfSecuritiesAcquired>
  <paymentDate>05/07/2021</paymentDate>
  <natureOfPayment>Services rendered</natureOfPayment>
  </securitiesToBeSold>
  <securitiesToBeSold>
  <securitiesClassTitle>Common Stock</securitiesClassTitle>
  <acquiredDate>06/11/2023</acquiredDate>
  <natureOfAcquisitionTransaction>Restricted stock units awarded under incentive award plan</natureOfAcquisitionTransaction>
  <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
  <isGiftTransaction>N</isGiftTransaction>
  <amountOfSecuritiesAcquired>3000</amountOfSecuritiesAcquired>
  <paymentDate>04/01/2022</paymentDate>
  <natureOfPayment>Services rendered</natureOfPayment>
  </securitiesToBeSold>
  <securitiesToBeSold>
  <securitiesClassTitle>Common Stock</securitiesClassTitle>
  <acquiredDate>06/11/2023</acquiredDate>
  <natureOfAcquisitionTransaction>Restricted stock units awarded under incentive award plan</natureOfAcquisitionTransaction>
  <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
  <isGiftTransaction>N</isGiftTransaction>
  <amountOfSecuritiesAcquired>1475</amountOfSecuritiesAcquired>
  <paymentDate>08/10/2022</paymentDate>
  <natureOfPayment>Services rendered</natureOfPayment>
  </securitiesToBeSold>
  <securitiesToBeSold>
  <securitiesClassTitle>Common Stock</securitiesClassTitle>
  <acquiredDate>06/11/2023</acquiredDate>
  <natureOfAcquisitionTransaction>Restricted stock units awarded under incentive award plan</natureOfAcquisitionTransaction>
  <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
  <isGiftTransaction>N</isGiftTransaction>
  <amountOfSecuritiesAcquired>2500</amountOfSecuritiesAcquired>
  <paymentDate>03/16/2023</paymentDate>
  <natureOfPayment>Services rendered</natureOfPayment>
  </securitiesToBeSold>
  <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
  <securitiesSoldInPast3Months>
  <sellerDetails>
  <name>Nathan Dickerman</name>
  <address>
  <street1 xmlns="http://www.sec.gov/edgar/common">350 Treat Avenue</street1>
  <city xmlns="http://www.sec.gov/edgar/common">San Francisco</city>
  <stateOrCountry xmlns="http://www.sec.gov/edgar/common">CA</stateOrCountry>
  <zipCode xmlns="http://www.sec.gov/edgar/common">94110</zipCode>
  </address>
  </sellerDetails>
  <securitiesClassTitle>Common Stock</securitiesClassTitle>
  <saleDate>03/14/2023</saleDate>
  <amountOfSecuritiesSold>3227</amountOfSecuritiesSold>
  <grossProceeds>29165.63</grossProceeds>
  </securitiesSoldInPast3Months>
  <securitiesSoldInPast3Months>
  <sellerDetails>
  <name>Nathan Dickerman</name>
  <address>
  <street1 xmlns="http://www.sec.gov/edgar/common">350 Treat Avenue</street1>
  <city xmlns="http://www.sec.gov/edgar/common">San Francisco</city>
  <stateOrCountry xmlns="http://www.sec.gov/edgar/common">CA</stateOrCountry>
  <zipCode xmlns="http://www.sec.gov/edgar/common">94110</zipCode>
  </address>
  </sellerDetails>
  <securitiesClassTitle>Common Stock</securitiesClassTitle>
  <saleDate>03/15/2023</saleDate>
  <amountOfSecuritiesSold>4342</amountOfSecuritiesSold>
  <grossProceeds>36999.98</grossProceeds>
  </securitiesSoldInPast3Months>
  <remarks>Shares to be sold to cover withholding taxes upon vesting of restricted stock unit award.</remarks>
  <noticeSignature>
  <noticeDate>06/13/2023</noticeDate>
  <signature>/s/ Nathan Dickerman</signature>
  </noticeSignature>
  </formData>
  </edgarSubmission>
metadata_documents: [{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 5606}]
text: 144
  0001857912
  XXXXXXXX
  LIVE
  0001816581
  Ouster, Inc.
  001-39463
  350 Treat Avenue
  San Francisco
  CA
  94110
  415-949-0108
  Nathan Dickerman
  Officer
  Common Stock
  ETRADE FINANCIAL CORPORATION
  3 EDISON DRIVE
  ALPHARETTA
  GA
  30005
  4462
  25076.44
  38814621
  06/12/2023
  NYSE
  Common Stock
  06/11/2023
  Restricted stock units awarded under incentive award plan
  Issuer
  N
  4036
  05/07/2021
  Services rendered
  Common Stock
  06/11/2023
  Restricted stock units awarded under incentive award plan
  Issuer
  N
  3000
  04/01/2022
  Services rendered
  Common Stock
  06/11/2023
  Restricted stock units awarded under incentive award plan
  Issuer
  N
  1475
  08/10/2022
  Services rendered
  Common Stock
  06/11/2023
  Restricted stock units awarded under incentive award plan
  Issuer
  N
  2500
  03/16/2023
  Services rendered
  N
  Nathan Dickerman
  350 Treat Avenue
  San Francisco
  CA
  94110
  Common Stock
  03/14/2023
  3227
  29165.63
  Nathan Dickerman
  350 Treat Avenue
  San Francisco
  CA
  94110
  Common Stock
  03/15/2023
  4342
  36999.98
  Shares to be sold to cover withholding taxes upon vesting of restricted stock unit award.
  06/13/2023
  /s/ Nathan Dickerman