| George G. Grainger | |
| Birth Date: | 24 October 1876 |
| Birth Place: | Manhattan, New York, U.S. |
| Death Date: | [1] |
| Death Place: | Brooklyn, New York, U.S. |
| Player Years1: | 1895–1897 |
| Player Team1: | Fordham |
| Coach Years1: | 1896 |
| Coach Team1: | Fordham |
| Overall Record: | 1–0 |
George G. Grainger (October 24, 1876 – May 4, 1944) was an American football player and coach. He was the head football coach at Fordham University for one season in 1896, compiling a record of 1–0.