| Billy Tidwell | |
| Birth Date: | 3 August 1930 |
| Birth Place: | Hearne, Texas, U.S. |
| Death Place: | Trinity, Texas, U.S. |
| Player Years1: | 1949–1951 |
| Player Team1: | Texas A&M |
| Player Years2: | 1954 |
| Player Team2: | San Francisco 49ers |
| Player Positions: | Halfback |
| Coach Years1: | 1955–1973 |
| Coach Team1: | Sam Houston State (assistant) |
| Coach Years2: | 1974–1977 |
| Coach Team2: | Sam Houston State |
| Admin Years1: | 1974–1979 |
| Admin Team1: | Sam Houston State |
| Overall Record: | 11–30–1 |
| Awards: | |
Billy Reyne Tidwell (August 3, 1930 – December 19, 1990) was American football player and coach.[1] Tidwell was drafted in the third round of the 1952 NFL draft by the San Francisco 49ers.[2] He served as the head football coach at Sam Houston State University from 1974 to 1977, compiling a record of 11–30–1.[3]