| Gavan Horsley | |
| Birth Name: | Gavan Rex Horsley[1] |
| Birth Date: | c. 1933 |
| Birth Place: | Coorparoo, Queensland |
| School: | Anglican Church Grammar School |
| Ru Position: | wing |
| Repyears1: | 1954 |
| Repteam1: | Wallabies |
| Repcaps1: | 1 |
| Reppoints1: | 0 |
Gavan Rex Horsley (born c. 1933) was a rugby union player who represented Australia.
Horsley, a wing, was born in Coorparoo, Queensland and claimed 1 international rugby cap for Australia. He was educated at the Anglican Church Grammar School.[2]