EXHIBIT 31.1
CERTIFICATIONS
I, Mark F. Bradley, certify that:
| 1. | I have reviewed this Quarterly Report on Form 10-Q/A for the quarterly period ended June 30, 2010, of Peoples Bancorp Inc.; 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. |
| Date: July 23, 2010 | | By: /s/ | MARK F. BRADLEY |
| | | | Mark F. Bradley |
| | | | President and Chief Executive Officer |
