FARMERS NATIONAL BANC CORP /OH/

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

SCHEDULE 14A

(Rule

14a-101)

SCHEDULE 14A INFORMATION

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

(Amendment No. )

Filed by the Registrant ☒

Filed by a Party other than the Registrant ☐

Check the appropriate box:

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check all boxes that apply):

20 SOUTH BROAD STREET,

CANFIELD, OHIO 44406

To Our Shareholders:

You are cordially invited to the 2025 Annual Meeting of Shareholders of Farmers National Banc Corp. (“Farmers” or the “Company”) to be held on April 17, 2025 at 10:00 a.m., Eastern Time. We have adopted a virtual format for our Annual Meeting to provide a consistent experience to all shareholders regardless of location. We will provide a live webcast of the Annual Meeting athttps://meetnow.global/MT9XFPM, where you will be able to vote electronically and submit questions during the meeting.

During the Annual Meeting, you will be asked to: (i) elect three Class III directors whose terms will expire at the Annual Meeting in 2028; (ii) consider and vote upon anon-binding advisory resolution to approve the compensation of the Company’s named executive officers; and (iii) consider and vote upon a proposal to ratify the Audit Committee’s appointment of Crowe LLP as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2025.

Your vote on these matters is important, regardless of the number of shares you own, and all shareholders are encouraged to participate in the live webcast of the Annual Meeting. However, it is important that your shares be represented regardless of whether you plan to participate in the live webcast of the Annual Meeting. In order to ensure that your shares are represented, I urge you to execute and return the enclosed proxy, or that you submit your proxy by telephone or Internet promptly.

Sincerely,

KEVIN J. HELMICK

President and Chief Executive Officer

20 SOUTH BROAD STREET

CANFIELD, OHIO 44406

NOTICE OF ANNUAL MEETING OF SHAREHOLDERS

To Be Held Thursday, April 17, 2025

The Annual Meeting of Shareholders of Farmers National Banc Corp. (“Farmers” or the “Company”) will be held on April 17, 2025 at 10:00 a.m., Eastern Time. We have adopted a virtual format for our Annual Meeting to provide a consistent experience to all shareholders regardless of location. We will provide a live webcast of the Annual Meeting at https://meetnow.global/MT9XFPM, where you will be able to vote electronically and submit questions during the meeting.

The 2025 Annual Meeting will be held for the following purposes:

The Board of Directors has fixed the close of business on March 4, 2025 as the record date for the determination of shareholders entitled to notice of, and to vote during, the Annual Meeting. Your Board of Directors recommends that you vote“FOR” the election of each of the director nominees included in Proposal Number 1 and“FOR” each of Proposal Numbers 2 and 3.

By Order of the Board of Directors,

TROY ADAIR

Senior Executive Vice President, Chief Financial Officer and Secretary

Canfield, Ohio

PROXY STATEMENT