Billy Riebock
| Current position | |
|---|---|
| Title | Head coach |
| Team | Millikin |
| Conference | CCIW |
| Record | 3–7 |
| Biographical details | |
| Born | c. 1984 (age 41–42) Decatur, Illinois, U.S. |
| Alma mater | Quincy University (2006) |
| Playing career | |
| 2002–2005 | Quincy |
| Position | Quarterback |
| Coaching career (HC unless noted) | |
| 2006 | St. Francis (IL) (WR) |
| 2007 | Indiana (OQC) |
| 2008–2011 | Quincy (OC/QB) |
| 2012–2013 | Ball State (GA) |
| 2014–2016 | Elon (WR) |
| 2017 | Rice (OQC) |
| 2018 | Bridgewater (OC/QB) |
| 2019–2022 | Texas A&M–Commerce (OC/QB) |
| 2023–2024 | Midwestern State (OC/QB) |
| 2025–present | Millikin |
| Head coaching record | |
| Overall | 3–7 |
William Riebock (born c. 1984) is an American college football coach. He is the head football coach for Millikin University, a position he has held since 2025. He also coached for St. Francis (IL), Indiana, Quincy, Ball State, Elon, Rice, Bridgewater, Texas A&M–Commerce, and Midwestern State. He played college football for Quincy as a quarterback.