| National Challenge Cup | |
| Year: | 1928 |
| Country: | United States |
| Dates: | 15 January 1928 – 15 April 1928 |
| Defending Champions: | Fall River F.C. |
| Winners: | New York Nationals |
| Count: | 1 |
| Second: | Chicago Bricklayers |
| Semifinal1: | Ben Millers |
| Semifinal2: | J&P Coats |
| Prev Season: | 1927 |
| Next Season: | 1929 |
The 1928 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.[1]