 Dewar Challenge Cup | |
| Tournament details | |
|---|---|
| Country |  USA |
| Dates | 4 May-7 Sep 1947 |
| Defending champions | Viking A.A. |
| Final positions | |
| Champions | Ponta Delgada S.C. (1st title) |
| Runner-up | Chicago Sparta |
| Semifinalists |
|
The 1947 National Challenge Cup was the 33rd edition of the United States Soccer Football Association's annual open cup. Today, the tournament is known as the Lamar Hunt U.S. Open Cup. Teams from the American Soccer League II competed in the tournament, based on qualification methods in their base region. Ponta Delgada S.C. won the tournament for their first time ever, by defeating Chicago Sparta.