| Biographical details | |
|---|---|
| Born | June 13, 1950 Butte, Montana, U.S. |
| Playing career | |
| 1971–1972 | Montana |
| Position(s) | Safety |
| Coaching career (HC unless noted) | |
| 1975–1978 | Colton HS (WA) |
| 1979–1981 | Helena HS (MT) |
| 1980–1981 | Montana State (assistant) |
| 1982–1987 | Gillette Campbell County HS (WY) |
| 1988–1990 | Montana Western |
| 1991–1995 | Montana (OC) |
| 1996–1999 | Montana |
| 2000–2004 | Utah State |
| Administrative career (AD unless noted) | |
| 2006–2007 | Boulder Jefferson HS (MT) |
| Head coaching record | |
| Overall | 68–62 (college) |
| Tournaments | 3–4 (NCAA D-I-AA playoffs) |
| Accomplishments and honors | |
| Championships | |
| 3 Big Sky (1996, 1998–1999) | |
Michael Dennehy (born June 13, 1950) is a former American football player and coach. He served as the head football coach at the University of Montana Western (1988–1990), the University of Montana (1996–1999), and Utah State University (2000–2004), compiling a career college football record of 68–62.