| San Francisco Challenger | |
| Type: | Inter-city rail |
| Status: | Discontinued |
| Locale: | Western United States |
| Successor: | Gold Coast |
| Formeroperator: | |
| Start: | Chicago, Illinois |
| End: | Oakland, California |
| Line Used: | Overland Route |
The San Francisco Challenger was a train operated by Southern Pacific Railroad, Union Pacific Railroad and Chicago and Northwestern Railroad. Starting in 1936, it ran from Oakland, California to Chicago, Illinois via the Overland Route. Schedule was about 60 hours—three nights and two days. In 1947 it was replaced by the Gold Coast, which was discontinued in January 1955.[1]