December 23, 2025 Robert Cafera Chief Financial Officer FirstSun Capital Bancorp 1400 16th Street Suite 250 Denver, CO 80202 Re: FirstSun Capital Bancorp Registration Statement on Form S-4 Filed December 11, 2025 File Number 333-292064 Dear Robert Cafera: 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 Christian Windsor at 202-551-3419 with any questions. Sincerely, Division of Corporation Finance Office of Finance