| Bill Knox | |
| Number: | 31, 24 |
| Position: | Defensive back |
| Birth Date: | 19 June 1951 |
| Birth Place: | Elba, Alabama, U.S. |
| Height Ft: | 5 |
| Height In: | 9 |
| Weight Lbs: | 190 |
| High School: | Roosevelt (East Chicago, Indiana) |
| College: | Purdue |
| Undraftedyear: | 1974 |
| Pastteams: | |
| Pfr: | KnoxBi20 |
William Robert Knox (born June 19, 1951) is a former American football defensive back who played three seasons with the Chicago Bears of the National Football League (NFL). He played college football at Purdue.[1] He was also a member of the Hamilton Tiger-Cats of the Canadian Football League (CFL).[2]