EX-5.1

Exhibit 5.1

[Triumph Bancorp, Inc. Letterhead]

December 17, 2021

Triumph Bancorp, Inc.

12700 Park Central Drive, Suite 1700

Dallas, Texas 75251

Ladies and Gentlemen:

I am the General Counsel of Triumph Bancorp, Inc., a Texas corporation (the “Company”), and as such have acted as counsel to the Company in connection with the Registration Statement on Form S-8 (the “Registration Statement”, which term does not include any other document or agreement whether or not specifically referred to therein or attached as an exhibit or schedule thereto) relating to the registration under the U.S. Securities Act of 1933, as amended (the “Securities Act”) of up to 450,000 shares of common stock, par value $0.01 per share, of the Company (the “Securities”), which may be issued pursuant to the Company’s 2014 Omnibus Incentive Plan (the “Plan”). In connection with the foregoing, you have requested my opinion with respect to the following matters.

For the purposes of giving the opinion contained herein, I, or attorneys working under my direction, have examined the Registration Statement and the Plan. I, or attorneys working under my direction, have also examined the originals, or duplicates or certified or conformed copies, of such corporate records, agreements, documents and other instruments, including the amended and restated certificate of formation and amended and restated bylaws of the Company, and have made such other investigations as I have deemed relevant and necessary in connection with the opinion set forth below. As to questions of fact material to this opinion, I have relied, with your approval, upon oral and written representations of officers and representatives of the Company and certificates or comparable documents of public officials and of officers and representatives of the Company.

In making such examination and rendering the opinion set forth below, I have assumed without verification the genuineness of all signatures, the authenticity of all documents submitted to me as originals, the authenticity of the originals of such documents submitted to me as certified copies, the conformity to originals of all documents submitted to me as copies, the authenticity of the originals of such documents, that all documents submitted to me as certified copies are true and correct copies of such originals and the legal capacity of all individuals executing any of the foregoing documents. I have also assumed that the Securities, when issued, will be duly authenticated by the transfer agent and registrar for the Securities.

Based upon the foregoing, and subject to the qualifications, assumptions and limitations stated herein, I am of the opinion that when the Securities have been issued and delivered in accordance with the provisions of the Plan, the Securities will be validly issued, duly authorized, fully paid and nonassessable.