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We consent to the incorporation by reference in the Registration Statement of Origin Bancorp, Inc. (the “Company”) on Form S-8 (No. 333-226115, 333-255879 and 333-266440) and Form S-3 (No. 333-268122) of our report, dated February 28, 2024, on our audits of the consolidated financial statements of the Company as of December 31, 2023 and 2022, and for each of the years in the three-year period ended December 31, 2023, which report is included in the Company’s Annual Report on Form 10-K. We also consent to the incorporation by reference of our report dated February 28, 2024 on our audit of the internal control over financial reporting of Origin Bancorp, Inc. as of December 31, 2023, which is included in the Annual Report on Form 10-K.