AUBURN NATIONAL

BANCORPORATION,

INC AND SUBSIDIARIES

EXHIBIT 31.2

CERTIFICATION

PURSUANT TO

RULE 13a-14 OF THE SECURITIES EXCHANGE ACT OF 1934,

AS ADOPTED PURSUANT TO

SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

CERTIFICATION

I, W.

James Walker,

IV,

certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Auburn National Bancorporation,

Inc.;

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;

3. Based on my knowledge, the financial statements, and other financial

information included in this report, fairly present in

all material respects the financial condition, results of operations and

cash flows of the registrant as of, and for, the periods

presented in this report;

4. The registrant’s other

certifying officer and I are responsible for establishing and maintaining disclosure

controls and

procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e))

and internal control over financial reporting (as

defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

Designed such disclosure controls and procedures, or caused such disclosure controls

and procedures to be

designed under our supervision, to ensure that material information relating

to the registrant, including its

consolidated subsidiaries, is made known to us by others within those entities, particularly

during the period in

which this report is being prepared;

Designed such internal control over financial reporting, or caused such

internal control over financial reporting to

be designed under our supervision, to provide reasonable assurance

regarding the reliability of financial reporting

and the preparation of financial statements for external purposes in accordance

with generally accepted

accounting principles;

Evaluated the effectiveness of the registrant’s

disclosure controls and procedures and presented in this report our

conclusions about the effectiveness of the disclosure controls and procedures,

as of the end of the period covered

by this report based on such evaluation; and

Disclosed in this report any change in the registrant’s

internal control over financial reporting that occurred

during the registrant’s most recent fiscal quarter

(the registrant’s fourth fiscal quarter in the case of

an annual

report) that has materially affected, or is reasonably likely

to materially affect, the registrant’s internal

control

over financial reporting; and

5. The registrant’s other

certifying officer and I have disclosed, based on our most recent evaluation

of internal control over

financial reporting, to the registrant’s auditors

and the audit committee of the registrant’s

board of directors (or persons

performing the equivalent functions):

All significant deficiencies and material weaknesses in the design or operation of

internal control over financial

reporting which are reasonably likely to adversely affect the registrant’s

ability to record, process, summarize and

report financial information; and

Any fraud, whether or not material, that involves management or other

employees who have a significant role in

the registrant’s internal control over

financial reporting.

Date: November 12, 2025

/s/ W. James

Walker,

Senior Vice President and

Chief Financial Officer

AUBURN NATIONAL BANCORPORATION, INC 10-Q