United States securities and exchange commission logo August 14, 2023 Dr. Brian Wong Director, President, and Chief Executive Officer RAPT Therapeutics, Inc. 561 Eccles Avenue South San Francisco, California 94080 Re: RAPT Therapeutics, Inc. Registration Statement on Form S-3 Filed August 11, 2023 File No. 333-273910 Dear Dr. Brian Wong: 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 Cindy Polynice at 202-551-8707 with any questions. Sincerely, Division of Corporation Finance Office of Life Sciences cc: Courtney Tygesson, Esq.