| Viv Dunn | |
| Birth Name: | Vivian Alphonsus Dunn[1] |
| Birth Date: | 27 July 1895 |
| Birth Place: | Junee, New South Wales |
| Ru Position: | number eight |
| Repyears1: | 1920–21 |
| Repteam1: | Wallabies |
| Repcaps1: | 7 |
| Reppoints1: | 0 |
Vivian Alphonsus "Viv" Dunn (27 July 1895 - 19 October 1974) was a rugby union player who represented Australia.
Dunn, a number eight, was born in Junee, New South Wales and claimed a total of 7 international rugby caps for Australia.