West Perth is a municipality in Ontario, Canada, situated in Western Perth County, just west of the city of Stratford. In 2016, its population was 8,865 in a land area of 579.36 square kilometers. The former town of Mitchell and townships of Logan, Hibbert, and Fullarton all amalgamated into this single large municipality on January 1, 1998. Municipal offices, administration, and services are based in Mitchell. Its mayor is Walter McKenzie.