| Ken Gavin | |
| Birth Name: | Kenneth Australia Gavin[1] |
| Birth Date: | 20 January 1883 |
| Birth Place: | Cudal, New South Wales |
| Death Place: | Orange, NSW |
| Ru Position: | prop |
| Repyears1: | 1909 |
| Repteam1: | Australia |
| Repcaps1: | 1 |
| Reppoints1: | 0 |
Kenneth Australia Gavin (20 January 1883 – 24 May 1956) was a rugby union player who represented Australia.
Gavin, a prop, was born in Cudal, New South Wales and claimed 1 international rugby cap for Australia.