 Dewar Challenge Cup | |
| Tournament details | |
|---|---|
| Country |  USA |
| Dates | 10 January- 18 April 1937 |
| Defending champions | Uhrik Truckers |
| Final positions | |
| Champions | New York Americans (1st title) |
| Runner-up | St. Louis Shamrocks |
| Semifinalists | |
The 1937 National Challenge Cup was the annual open cup held by the United States Football Association now known as the Lamar Hunt U.S. Open Cup.