Chapple is a township municipality in Rainy River District in Northwestern Ontario, Canada. The township is served by Ontario Highway 71, a b…Chapple is a township municipality in Rainy River District in Northwestern Ontario, Canada. The township is served by Ontario Highway 71, a branch of the Trans-Canada Highway, and by Highway 600. It was named after Thomas William Chapple, a former Ontario MPP from 1894 to 1898, who served as judge for the Rainy River District from 1898 to 1926. Before politics Chapple was a lawyer.