| Bill O'Boyle | |
| Current Title: | Offensive line coach |
| Current Team: | Northwestern |
| Current Conference: | Big Ten |
| Birth Date: | 19 October 1963 |
| Birth Place: | Des Moines, Iowa, U.S. |
| Player Years1: | 1982–1983 |
| Player Team1: | Western Illinois |
| Coach Years1: | 1987–1989 |
| Coach Team1: | Chadron State (OL) |
| Coach Years2: | 1990–1993 |
| Coach Team2: | Western Illinois (OL) |
| Coach Years3: | 1994–1998 |
| Coach Team3: | Chadron State (assistant) |
| Coach Years4: | 1999–2004 |
| Coach Team4: | Chadron State (OC) |
| Coach Years5: | 2005–2011 |
| Coach Team5: | Chadron State |
| Coach Years6: | 2012 |
| Coach Team6: | Colorado Mesa (OC) |
| Coach Years7: | 2013 |
| Coach Team7: | Southern Illinois (OL) |
| Coach Years8: | 2014–2015 |
| Coach Team8: | Southern Illinois (co-OC/OL) |
| Coach Years9: | 2016–2017 |
| Coach Team9: | South Dakota (OL) |
| Coach Years10: | 2018–2022 |
| Coach Team10: | Kent State (OL) |
| Coach Years11: | 2023 |
| Coach Team11: | Colorado (OL) |
| Coach Years12: | 2024–present |
| Coach Team12: | Northwestern (OL) |
| Overall Record: | 57–21 |
| Tournament Record: | 3–3 (NCAA D-II playoffs) |
| Championships: | 3 RMAC (2006–2008) |
| Awards: | Liberty Mutual Coach of the Year (2007) |
Bill O'Boyle (born October 19, 1963) is an American football coach and former player. He is the current offensive line coach at Northwestern University.[1] O'Boyle served as the head football coach at Chadron State College from 2005 to 2011. In 2007, he was awarded the Liberty Mutual Coach of the Year Award for NCAA Division II.[2]
O'Boyle took over the head coaching job at Chadron State College in 2005. During his tenure with the Eagles, he won three Rocky Mountain Athletic Conference championships, advanced to the NCAA Division II Football Championship three times and coached former Harlon Hill Trophy winner Danny Woodhead. During his seven season tenure, he compiled an overall record of 57 wins and 21 losses (57–21).[3] In March 2012, O'Boyle was hired to serve as offensive coordinator at Colorado Mesa.[4]