Jack Leavenworth
| Biographical details | |
|---|---|
| Born | July 20, 1881 Wallingford, Connecticut, U.S.  | 
| Died | August 8, 1962 (aged 81) Meriden, Connecticut, U.S.  | 
| Alma mater | Yale University (1905) | 
| Playing career | |
| 1904 | Yale | 
| Position(s) | Halfback | 
| Coaching career (HC unless noted) | |
| 1905 | Alabama | 
| Head coaching record | |
| Overall | 6–4 | 
John Wallace Leavenworth (July 20, 1881 – August 8, 1962) was an American college football player and coach. He served as the head football coach at the University of Alabama in 1905, compiling a record of 6–4. Leavenworth played football as a halfback at Yale University. He died on August 8, 1962, at Meriden Hospital in Meriden, Connecticut.