| G. Cullen Thomas | |
| Birth Date: | 21 August 1890 |
| Birth Place: | Parke County, Indiana, U.S. |
| Death Place: | Minneapolis, Minnesota, U.S. |
| Player Sport1: | Football |
| Player Years2: | 1909–1911 |
| Player Team2: | Butler |
| Coach Sport1: | Football |
| Coach Years2: | 1912–1918 |
| Coach Team2: | Butler |
| Coach Sport3: | Basketball |
| Coach Years4: | 1912–1913 |
| Coach Team4: | Butler |
| Coach Sport5: | Baseball |
| Coach Years6: | 1910–1919 |
| Coach Team6: | Butler |
| Overall Record: | 20–24–2 (football) 16–18 (basketball) 10–23–1 (baseball) |
George Cullen Thomas (August 21, 1890 – January 11, 1973) was an American football, basketball, and baseball player and coach. He served as the head baseball coach at Butler University in Indianapolis, Indiana from 1910 to 1919.[1] He also served as Butler's head football coach from 1912 to 1918[2] and as men's basketball coach during the 1912–13 season.[3] Thomas was a charter member of Butler's Athletics Hall of Fame.[4] Thomas also participated in track and field at Butler.
Thomas died on January 11, 1973, at Eitel Hospital in Minneapolis, Minnesota.[5]