| Greg Allen | |
| Fullname: | Gregory Allen |
| Birth Date: | 27 October 1947 |
| Birth Place: | Warren, New South Wales, Australia |
| Club1: | Cronulla-Sutherland |
| Year1start: | 1970 |
| Year1end: | 76 |
| Appearances1: | 76 |
| Tries1: | 1 |
| New: | yes |
| Source: | [1] |
| Updated: | 26 March 2018 |
Greg Allen (born 27 October 1947 – 2009) was an Australian professional rugby league footballer who played in the 1970s for the Cronulla-Sutherland Sharks in the New South Wales Rugby League competition, as a .
Before signing on to the Cronulla-Sutherland club Allen was a strongly built sheep shearer hailing from the country town of Warren in north western New South Wales.