| Buck Gavin | |
| Birth Date: | 22 June 1895 |
| Birth Place: | Amenia, New York |
| Death Place: | Daytona Beach, Florida |
| Position1: | Running back |
| College: | None |
| Playing Years1: | 1920, 1922 |
| Playing Team1: | Buffalo |
| Playing Years2: | 1921 |
| Playing Team2: | Detroit |
| Playing Years3: | 1921, 1922, 1924–1925 |
| Playing Team3: | Rock Island Independents |
| Playing Years4: | 1923 |
| Playing Team4: | Green Bay Packers |
| Playing Years5: | 1926 |
| Playing Team5: | Hammond Pros |
Patrick Marvin "Buck" Gavin (June 22, 1895 – April 12, 1981) was a professional American football player who played running back for seven seasons for Buffalo, Detroit, Rock Island Independents, Green Bay Packers, and Hammond Pros. His full name was Patrick Marvin Gavin, and he was born in Amenia, NY.[1]