| Fred Denfeld | |
| Birth Date: | 26 October 1898 |
| Birth Place: | Duluth, Minnesota, U.S. |
| Death Place: | St. Paul, Minnesota, U.S. |
| Position1: | Offensive lineman |
| College: | United States Naval Academy |
| Playing Years1: | 1920 |
| Playing Team1: | Rock Island Independents |
| Playing Years2: | 1925 |
| Playing Team2: | Duluth Kelleys |
| Career Highlights: |
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| Databasefootball: | DENFIFRE01 |
Frederick Denfeld (October 26, 1898 – January 18, 1990) was a professional American football offensive lineman in the American Professional Football Association (APFA) and the National Football League (NFL). He played two seasons for the Rock Island Independents (1920) and the Duluth Kelleys (1925).[1]