| John I. Woodruff | |
| Birth Date: | 24 November 1864 |
| Birth Place: | Selinsgrove, Pennsylvania, U.S. |
| Death Place: | St. Petersburg, Florida, U.S. |
| Alma Mater: | Susquehanna (1888) Bucknell University (1890) |
| Coach Years2: | 1892–1893 |
| Coach Team2: | Susquehanna |
John I. Woodruff (November 24, 1864 – May 8, 1962) was an American football coach and member of the Pennsylvania House of Representatives. He served as the head football coach at Susquehanna University from 1892 to 1893.[1]
Woodruff spent two term as a state representative from Snyder County, Pennsylvania from 1919 to 1922.[2]