United States securities and exchange commission logo April 6, 2021 James Cash Chairman and Chief Executive Officer Catalyst Partners Acquisition Corp. 20 University Road Fourth Floor Cambridge, MA 02138 Re: Catalyst Partners Acquisition Corp. Form S-1 filed March 11, 2021 File No. 333-254131 Dear Dr. Cash: We have reviewed your registration statement and have the following comment. In our comment, we may ask you to provide us with information so we may better understand your disclosure. Please respond to this letter by amending your registration statement and providing the requested information. If you do not believe our comment applies to your facts and circumstances or do not believe an amendment is appropriate, please tell us why in your response. After reviewing any amendment to your registration statement and the information you provide in response to this comment, we may have additional comments. Form S-1 filed March 11, 2021 Conflicts of Interest, page 138 1. Mr. Sotiriou is the Chief Operating Officer of the issuer, as well as COO of Health Assurance Acquisition Corp. and Revolution Healthcare Acquisition Corp. On page 142 you state that Mr. Sotiriou may owe fiduciary duties to General Catalyst, HAAC, and RHAC, any of which may compete with you for acquisition opportunities. Please revise to explain how any potential conflicts will be addressed. See CF Disclosure Guidance Topic No. 11. 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. James Cash Catalyst Partners Acquisition Corp. April 6, 2021 Page 2 Refer to Rules 460 and 461 regarding requests for acceleration. Please allow adequate time for us to review any amendment prior to the requested effective date of the registration statement. You may contact Babette Cooper at 202-551-3396 or Jennifer Monick at 202-551-3295 if you have questions regarding the financial statements and related matters. Please contact Kim McManus at 202-551-3215 or Pam Long at 202-551-3765 with any other questions. FirstName LastNameJames Cash Sincerely, Comapany NameCatalyst Partners Acquisition Corp. Division of Corporation Finance April 6, 2021 Page 2 Office of Real Estate & Construction FirstName LastName