Elections were held in Renfrew County, Ontario on October 25, 2010 in conjunction with municipal elections across the province.
County council has no direct elections; its membership is made up of the mayors and reeves of the lower-tier municipalities of the county. Therefore, elections in those municipalities determine the members of council for the new term.
In Petawawa, voters elected six at-large councillors by casting their paper ballots in 19 polls at the Petawawa Civic Centre.