| Jay Baker | |
| Fullname: | Jay Baker |
| Birth Date: | 1991 10, df=yes |
| Birth Place: | Wales |
| Height: | 189cm (74inches) |
| Weight: | 940NaN0 |
| Position: | Wing |
| Currentclub: | Ospreys |
| Years1: | 2013-16 |
| Clubs1: | Aberavon RFC |
| Apps1: | 37 |
| Points1: | 115 |
| Years2: | 2016-17 |
| Clubs2: | Ospreys |
| Apps2: | 6 |
| Points2: | 5 |
Jay Baker (born 6 October 1991) is a Welsh rugby union player who plays for Ospreys as a winger.
Baker made his debut for the Ospreys in 2016 against Harlequins having previously played for the Ospreys academy and Aberavon RFC.