United States securities and exchange commission logo March 16, 2022 Chen Schor Chief Executive Officer Adicet Bio, Inc. 200 Clarendon Street, Floor 6 Boston, Massachusetts 02116 Re: Adicet Bio, Inc. Registration Statement on Form S-3 Filed March 15, 2022 File No. 333-263587 Dear Mr. Schor: This is to advise you that we have not reviewed and will not review your registration statement. Please refer to Rules 460 and 461 regarding requests for acceleration. We remind you that the company and its management are responsible for the accuracy and adequacy of their disclosures, notwithstanding any review, comments, action or absence of action by the staff. Please contact Joshua Gorsky at 202-551-7836 with any questions. Sincerely, Division of Corporation Finance Office of Life Sciences cc: Gabriela Morales-Rivera, Esq.