Exhibit 23.3
CONSENT OF INDEPENDENT AUDITORS
We consent to the incorporation by reference in this Registration Statement on Form S-3 of Business First Bancshares, Inc. of our report dated March 14, 2017, which is included in the Current Report on Form 8-K/A filed by Business First Bancshares, Inc. on February 15, 2018, and our report dated February 28, 2018, which is included in the Current Report on Form 8-K filed by Business First Bancshares, Inc. on May 22, 2018, with respect to the consolidated financial statements of Minden Bancorp, Inc.
We also consent to the reference to us under the heading “Experts” in the prospectus included with the Form S-3.
| /s/ Heard, McElroy & Vestal, LLC |
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| Heard, McElroy & Vestal, LLC | |||
Shreveport, Louisiana
May 23, 2018
