Exhibit 31.1

CERTIFICATIONS

RULE 13a-14(a)/15d-14(a) CERTIFICATIONS OF PRINCIPAL EXECUTIVE OFFICER

I, Kevin J. Helmick, certify that:

1) I have reviewed this annual report on Form 10-K/A of Farmers National Banc Corp.; 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.

/s/ Kevin J. Helmick

Kevin J. Helmick

President and Chief Executive Officer

(Principal Executive Officer)

May 6, 2022