| Birth Date: | 16 May 1981 |
| Birth Place: | Oakland, California, U.S. |
| Height: | 6feet |
| Weight: | 189lb |
| Ru Position: | Fullback |
| Amatteam1: | Belmont Shore RFC |
| Repyears1: | 2004–2007 |
| Repteam1: | United States |
| Repcaps1: | 18 |
| Reppoints1: | 69 |
| Repupdate: | 31 December 2020 |
Francois Viljoen (born May 16, 1981) is a former American rugby union fullback. He was a member of the United States national rugby union team that participated in the 2007 Rugby World Cup.[1]