CHANGE IN CONTROL AGREEMENT

Exhibit 10.4

Form for Officers

CHANGE IN CONTROL AGREEMENT

This Change in Control Agreement (this “Agreement”) is made by and between Farmers National Banc Corp. (the “Company”) and                      (the “Executive”) effective as of the                      day of             , 2013 (the “Effective Date”).

WHEREAS, the Executive is currently employed by the Company or an Affiliate; and

WHEREAS, in order to induce the Executive to continue performing services for the Company or Affiliate, the Company desires to provide the Executive with certain severance benefits in the event the Executive’s employment with the Company is terminated in connection with a Change in Control under the circumstances described herein;

NOW, THEREFORE, in consideration of the mutual promises and agreement set forth below, the Company and the Executive agree as follows:

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Payment of the amounts described in this Section 3 shall be made within 60 days following the Executive’s termination (or, if the Executive’s termination occurred prior to the Change in Control, within 30 days following the Change in Control), provided that the Executive executes (and does not revoke) a general release and waiver reasonably acceptable to the Company, generally in the form attached as Exhibit A hereto, before payment is to begin (and, if such 60 day period would begin in one taxable year of the Executive and end in another taxable year of the Executive, payment shall not commence until the second taxable year, regardless of when the Executive executes the release).

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In the event of a breach by the Executive of any covenant set forth in this Section 5, the term of such covenant will be extended by the period of the duration of such breach and such covenant will survive any termination of this Agreement but only for the limited period of such extension. The restrictions provided in this Section 5 are in addition to any restrictions on competition or solicitation contained in any other agreement between the Company or an Affiliate and the Executive. The provisions of this Section 5 constitute an essential element of this Agreement, without which the Company would not have entered into this Agreement. If the scope of any restriction contained in this Section 5 is too broad to permit enforcement of such restriction to its fullest extent, then such restriction will be enforced to the maximum extent permitted by law, and the Executive hereby consents and agrees that such scope may be judicially modified accordingly in any proceeding brought to enforce such restriction.

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Notwithstanding any other remedy available, the restrictions described in this Section 5 may be enforced by the Company, an Affiliate and/or any successor thereto, by an action to recover payments made under this Agreement, an action for injunction, and/or an action for damages. In the event the Company or an Affiliate obtains a permanent injunction against the Executive after notice and the opportunity to appear, the Executive shall be liable to pay all costs, including reasonable attorneys’ fees, which the Company or an Affiliate may incur in enforcing, to any extent, the provisions of this Agreement, whether or not litigation is actually commenced and including litigation of any appeal taken or defended by the Company or an Affiliate in any action to enforce this Agreement and which affirms and/or results in a permanent injunction. Any proceedings brought to enforce Section 5 of this Agreement shall be brought in the courts of Mahoning County, Ohio and the Executive expressly waives any objection or defense relating to jurisdiction or forum non-conveniens or similar doctrine or theory. The Executive acknowledges and agrees that the remedy at law for any breach of this Section 5 shall be inadequate, and that the Company or an Affiliate shall be entitled to injunctive relief without bond. Such injunctive relief shall not be exclusive, but shall be in addition to any other rights or remedies which the Company or an Affiliate may have for any such breach. In addition to the injunctive remedies described herein, the Executive acknowledges and agrees that in the event of a final judicial determination against the Executive with respect to an actual or threatened breach by the Executive of this Section 5, the Company shall be entitled to withhold any remaining amounts payments payable under Section 3 of this Agreement.

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If to the Company:

Farmers National Banc Corp.

20 South Broad Street

Canfield, Ohio 44406

Attn: Director of Human Resources

If to the Executive:

At the last address on file with the Company or the Affiliate employing the Executive.

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IN WITNESS WHEREOF, the parties hereto have executed this Agreement effective as of the date first written above.

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EXHIBIT A

Form of Release

GENERAL RELEASE

This General Release (the “Agreement”) is made and entered into as of             , 20    , by and between Farmers National Banc Corp. (the “Company”), and                      (the “Executive”) (collectively, the “Parties”).

ARTICLE I RELEASES, WAIVERS AND REVOCATION RIGHTS

1.01 Release. In consideration of receipt of the payments and benefits set forth in Section 3 of the Parties’ Change in Control Agreement by and between the Company and the Executive, effective as of             , 2013 (“CIC Agreement”), the Executive does hereby fully and forever surrender, release, acquit and discharge the Company, and its principals, stockholders, directors, officers, agents, administrators, insurers, subsidiaries, affiliates, employees, successors, assigns, related entities, and legal representatives, personally and in their representative capacities, and each of them (collectively, “Released Parties”), of and from any and all claims for costs of attorneys’ fees, expenses, compensation, and all losses, demands and damage of whatsoever nature or kind in law or in equity, whether known or unknown, including without limitation those claims arising out of, under, or by reason of the Executive’s employment with the Company or any Affiliate (as defined in the CIC Agreement), the Executive’s relationship with the Company or any Affiliate and/or the termination of the Executive’s employment relationship and any and all claims which were or could have been asserted in any charge, complaint, or related lawsuit. Without limiting the generality of the foregoing, the Executive specifically releases and discharges, but not by way of limitation, any obligation, claim, demand or cause of action based on, or arising out of, any alleged wrongful termination, breach of employment contract, breach of implied covenants of good faith and fair dealing, defamation, fraud, promissory estoppel, intentional or negligent infliction of emotional distress, discrimination based on age, pain and suffering, personal injury, punitive damages, and any and all claims arising from any alleged violation by the Released Parties of any federal, state, or local statutes, ordinances or common laws, including but not limited to the Ohio Civil Rights Act, including all provisions of the Ohio Revised Code concerning discrimination on the basis of age, the Age Discrimination in Employment Act of 1967 (“ADEA”), Title VII of the Civil Rights Act of 1964, the Americans With Disabilities Act (“ADA” and “ADAA”) or the Employee Retirement Income Security Act of 1974. This release of rights is knowing and voluntary. The Company acknowledges that the Executive does not release herein any rights or claims which may arise after the Effective Date of this Agreement (as defined in Section 1.03 of this Agreement) nor any rights the Executive has under the CIC Agreement, any rights the Executive may have regarding the enforcement of the CIC Agreement, the Executive’s rights under the Consolidated Omnibus Budget Reconciliation Act of 1985, as amended, or the Executive’s rights to indemnification.

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1.02 Waiver of Right to Sue. Except for the Company’s promises and obligations contained in the CIC Agreement, the Executive further agrees, promises and covenants that neither the Executive, nor any person, organization, or any other entity acting on the Executive’s behalf will file, charge, claim, sue or cause or permit to be filed, charged or claimed, any action for damages or other relief (including injunctive, declaratory, monetary relief or other) against the Company, involving any matter occurring in the past up to the Effective Date of this Agreement or involving any continuing effects of actions or practices which arose prior to the Effective Date of this Agreement or the termination of the Executive’s employment.

1.03 Older Workers’ Benefit Protection Act Waiver. The Executive has certain individual federal rights, which must be explicitly waived. Specifically, the Executive is protected by the ADEA from discrimination in employment because of the Executive’s age. By executing this Agreement, the Executive waives these rights as to any past or current claims. Notwithstanding anything else in this Agreement, excluded from this Agreement are ADEA age claims that may arise after execution of this Agreement. In connection with the releases in Section 1.01 and waivers in Section 1.02 of any and all claims or disputes that the Executive has or may have on the date hereof, the Executive makes the following acknowledgements:

[1] By signing this Agreement, the Executive waives all claims against the Released Parties for discrimination based on age, including without limitation, any claim which arises under or by reason of a violation of the ADEA.

[2] In consideration of the releases, waivers and covenants made by the Executive under this Agreement, the Executive will be receiving the payments and other benefits in the amounts and manner described in Section 3 of the Parties’ CIC Agreement.

[3] The Executive represents and acknowledges that the Executive has consulted with an attorney prior to executing this Agreement and the Executive has been given a period of at least twenty-one (21) days within which to consider whether or not to enter into this Agreement.

[4] The Executive understands that this Agreement shall be effective as of the date on which the Executive signs the Agreement (“Effective Date”), provided that the Agreement is not revoked by the Executive within seven days after the Executive signs the Agreement. For a period of seven days after the Executive signs the Agreement, the Executive has the right to revoke and/or cancel this Agreement by the delivery of notice in writing of revocation and/or cancellation to the Company. In the event that the Executive does not revoke and/or cancel this Agreement during this period, this Agreement shall become effective on the Effective Date. In the event that the Executive revokes this Agreement, the Executive shall not be entitled to any of the consideration set out in Section 3 of the Parties’ CIC Agreement.

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ARTICLE 2 MISCELLANEOUS

2.01 Counterparts. This Agreement may be executed in one or more counterparts, each of which will be deemed to be an original, but all of which together will constitute one and the same Agreement. Facsimile signatures will have the same legal effect as original signatures.

2.02 Applicable Law. To the extent not preempted by federal law, the provisions of this Agreement will be construed and enforced in accordance with the laws of the state of Ohio.

2.03 Headings. The descriptive headings in this Agreement are inserted for convenience of reference only and are not intended to be part of or to affect the meaning or interpretation of this Agreement.

IN WITNESS WHEREOF, the Parties have executed this Agreement, as of             , 20    .

FARMERS NATIONAL BANC CORP.

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