Harriston (population 1,797) is a community in the Town of Minto in Wellington County, Ontario, Canada. In 1999, Harriston was amalgamated with the communities of Palmerston, Clifford, and Minto Township to form the Town of Minto. Harriston is located at the headwaters of the Maitland River, and has several shops, restaurants, a library, an art gallery and cultural centre.