| Biographical details | |
|---|---|
| Born | June 5, 1885 Boston, Massachusetts, U.S. |
| Died | January 30, 1962 (aged 76) Boston, Massachusetts, U.S. |
| Alma mater | Dartmouth College |
| Playing career | |
| 1906 | Dartmouth |
| Position(s) | Quarterback |
| Coaching career (HC unless noted) | |
| Football | |
| 1907 | Newton HS (MA) |
| 1908–1911 | Colby |
| 1909 | Newton HS (MA) |
| 1912 | Catholic University |
| 1913–1914 | Salem HS (MA) |
| 1915 | English HS (MA) |
| 1917 | Colgate |
| 1921–1922 | Salem HS (MA) |
| 1923–1926 | Boston College (Backfield) |
| Baseball | |
| 1909 | Colby |
| Head coaching record | |
| Overall | 7–7 (football, excluding Colby) |
Harry Sullivan McDevitt (June 5, 1885 – January 30, 1962) was an American college football and baseball coach. He served as the head football coach at the Catholic University of America in 1912 and Colgate University in 1917. He coached baseball at Colby College. McDevitt played as a quarterback at Dartmouth College in 1906, where he also later served as an assistant football coach.