EXHIBIT 31.3

CERTIFICATIONS

I, Daryl G. Byrd, President and Chief Executive Officer of IBERIABANK Corporation, certify that:

1. I have reviewed this Amendment No. 1 on Form 10-K/A to the annual report on Form 10-K of IBERIABANK Corporation; and

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

Date: March 17, 2020	/s/ Daryl G. Byrd
	Daryl G. Byrd
	President and Chief Executive Officer

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