United States securities and exchange commission logo November 9, 2021 David R. Melville, III Chief Executive Officer Business First Bancshares, Inc. 500 Laurel Street, Suite 101 Baton Rouge, LA 70801 Re: Business First Bancshares, Inc. Registration Statement on Form S-4 Filed November 2, 2021 File No. 333-260691 Dear Mr. Melville: 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 Tonya K. Aldave at (202) 551-3601 with any questions. Sincerely, Division of Corporation Finance Office of Finance cc: Kevin E. Strachan, Esq.