St. Marys station in St. Marys, Ontario, Canada is a staffed railway station used by Via Rail's Corridor intercity train service. The station is served by one daily train in each direction between Toronto and Sarnia via London.

The International was a named passenger train operated between Chicago and Toronto. It was originally an overnight train operated by the Grand Trunk Railway of Canada and its successors the Canadian National Railway and Grand Trunk Western Railroad, running as far as Montreal. The train was cut back to Port Huron, Michigan, in 1970 and discontinued in 1971.