| William A. Thomas | |
| Birth Date: | 21 October 1948 |
| Death Place: | Houston, Texas, U.S. |
| Player Years1: | 1967–1970 |
| Player Team1: | Tennessee State |
| Player Positions: | Linebacker |
| Coach Years1: | 1971–1983 |
| Coach Team1: | Tennessee State (assistant) |
| Coach Years2: | 1984–1988 |
| Coach Team2: | Tennessee State |
| Coach Years3: | 1994–2003 |
| Coach Team3: | Texas Southern |
| Admin Years1: | 1986–1994 |
| Admin Team1: | Tennessee State |
| Overall Record: | 84–78–3 |
| Tournament Record: | 1–1 (NCAA D-I-AA playoffs) |
William A. Thomas (October 21, 1948 – January 18, 2019) was an American football coach and college athletics administrator. He served as the head football at Tennessee State University in Nashville, Tennessee from 1984 to 1988 and Texas Southern University in Houston, Texas from 1994 to 2003, compiling a career college football coaching record of 84–78–3.[1] [2] Thomas was also the athletic director at Tennessee State from 1986 to 1994.