Patricia A. "Pat" Davidson (born June 30, 1946 in Petrolia, Ontario) was a member of the Canadian House of Commons from 2006 until 2015 representing the riding of Sarnia—Lambton and is a member of the Conservative Party of Canada.Davidson previously served as mayor of Wyoming (1991–2000) and Plympton-Wyoming, Ontario (2001–2006) and warden of Lambton County. She first won her seat in the 2006 federal election by defeating incumbent Liberal Roger Gallaway by more than 4,000 votes.