The International was the name of two different passenger trains.
The first International operated between Chicago and Toronto, Ontario. It was originally operated by Canadian National and Grand Trunk Western. When the route was revived in 1982, it was operated jointly by VIA Rail and Amtrak. The Amtrak service was discontinued on April 25, 2004 due to decreasing ridership.
The second International is a route originally operated by Great Northern between Seattle and Vancouver, British Columbia. This route began in 1950 and is still in operation, although it is now operated by Amtrak and is part of its Amtrak Cascades train.