Exhibit 23.1
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We consent to the incorporation by reference in this Registration Statement of Allegiance Bancshares, Inc. on Form S-3 of our report dated March 11, 2019 on the consolidated financial statements of Allegiance Bancshares, Inc. appearing in the Annual Report on Form 10-K of Allegiance Bancshares, Inc., for the year ended December 31, 2018 and to the reference to us under the heading "Experts" in the prospectus.
/s/ Crowe LLP
Dallas, Texas
January 27, 2020