Minto is a town in midwestern Ontario, Canada, on the Maitland River in Wellington County. Minto is the western terminus of Highway 9. It is named for Gilbert Elliot-Murray-Kynynmound, 4th Earl of Minto; 8th Governor General of Canada. The Town of Minto was formed in 1999 through the amalgamation of the Township of Minto, the Towns of Harriston and Palmerston, along with the Village of Clifford.