**EXHIBIT      31.1**

**CERTIFICATION      OF PRINCIPAL EXECUTIVE OFFICER **

**PURSUANT      TO EXCHANGE ACT RULES **

**13A-14(A)/15D-14(A)      AS ADDED BY SECTION 302 **

**OF      THE SARBANES-OXLEY ACT OF 2002**

**CERTIFICATION**

|  | 1. | I                have reviewed this quarterly report on Form 10-Q of Union National                Financial Corporation. |
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|  | 2. | Based                on my knowledge, the quarterly 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 quarterly report. |
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|  | 3. | Based                on my knowledge, the financial statements, and other financial information                included in this quarterly 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 quarterly                report. |
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|  | 4. | Union                National'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)) for the registrant and we                have: |
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|   | (a) | 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 quarterly                report is                being prepared; |
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|   | (b) | 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 quarterly report based on such evaluation; and |
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|   | (c) | 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 that has materially affected, or is reasonably likely                to                materially affect, the registrant’s internal control over financial                reporting; and |
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|  | 5. | Union                National'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 registrant's                board of                directors (or persons performing the equivalent                function): |
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|   | (a) | all                significant deficiencies and material weaknesses in the design or                operation of the 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 |
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|   | (b) | any                fraud, whether or not material, that involves management or other                employees who have a significant role in the registrant's internal                controls over financial reporting. |
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|        | By                       | /s/ Mark D. Gainer |
|   | Chairman/President/CEO        |
|   | Date: August 14,              2007 |

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