The Western Star was a named passenger train operated by the Great Northern Railway between Chicago and the Pacific Northwest via Minneapolis/St.

The Western Star was inaugurated on June 3, 1951, replacing the Oriental Limited as the secondary train along the Great Northern's transcontinental route.

The Great Northern's primary train was the famed Empire Builder, which made the run in 45 hours.

The Western Star required a more leisurely 58 hours, making more intermediate stops and serving branches the Empire Builder bypassed, such as Grand Forks, North Dakota and Great Falls, Montana.

[7] Amtrak did not retain the Western Star as part of its national route network and the train was discontinued, although it did re-route the Empire Builder to serve Grand Forks.