| Jimmy Grehan | |
| Fullname: | James Grehan |
| Birth Date: | 17 March 1987 |
| Club1: | Castleford Tigers |
| Year1start: | 2012 |
| Appearances1: | 4 |
| Tries1: | 0 |
| Goals1: | 0 |
| Fieldgoals1: | 0 |
| Points1: | 0 |
| Year2start: | 2012 |
| Appearances2: | 5 |
| Tries2: | 1 |
| Goals2: | 0 |
| Fieldgoals2: | 0 |
| Points2: | 4 |
| Club3: | Limoux Grizzlies |
| New: | yes |
| Retired: | no |
| Source: | [1] [2] |
| Updated: | 22 February 2018 |
James "Jimmy" Grehan (born 17 March 1987) is an Australian professional rugby league footballer who has played in the 2010s. He will play for Castleford Tigers in 2022 after signing on a 3 year deal.
He has played for St. George Illawarra Dragons (junior), Parramatta Eels (squad), Western Suburbs Magpies (Reserve grade), Limoux Grizzlies, Castleford Tigers (Heritage № 924) and the Batley Bulldogs (loan), as a, or .[3]