| Biographical details | |
|---|---|
| Born | 1889 New Concord, Ohio, U.S. |
| Died | April 23, 1943 (aged 53–54) Missoula, Montana, U.S. |
| Alma mater | Geneva (A.B., 1911) |
| Coaching career (HC unless noted) | |
| Football | |
| 1918–1919 | South Dakota |
| 1922–1923 | Montana |
| Basketball | |
| 1918–1922 | South Dakota |
| 1922–1932 | Montana |
| Track | |
| 1923–1925 | Montana |
| Administrative career (AD unless noted) | |
| 1924–1932 | Montana |
| Head coaching record | |
| Overall | 10–16 (football) 104–125 (basketball) |
John Wilson Stewart (1889 – April 23, 1943) was an American football, basketball, and track coach, college athletics administrator, and educator. He served as the head football coach at the University of South Dakota from 1918 to 1919, and the University of Montana from 1922 to 1923, compiling a career college football coaching record of 10–16. Stewart was the head basketball coach at South Dakota from 1918 to 1922 and Montana from 1922 and 1932, tallying a career college basketball coaching mark of 104–125. He was also the head track coach at Montana from 1923 to 1925 and the school's athletic director from 1924 to 1932.