| Waltie Vermeulen | |
| Fullname: | Petrus van der Walt Vermeulen |
| Birth Date: | 11 November 1988 |
| Birth Place: | Bloemfontein, South Africa |
| Weight: | 1060NaN0 |
| School: | Grey College, Bloemfontein |
| University: | University of the Free State |
| Position: | Lock |
| Youthyears1: | 2006–2009 |
| Years1: | 2009–2014 |
| Apps1: | 58 |
| Points1: | 0 |
| Years2: | 2010–2014 |
| Apps2: | 26 |
| Points2: | 5 |
| Repyears1: | 2008 |
| Repteam1: | South Africa Students |
| Repcaps1: | 1 |
| Reppoints1: | 0 |
| Clubupdate: | 1 October 2014 |
| Repupdate: | 4 May 2014 |
Petrus van der Walt Vermeulen (born 11 November 1988) is a former South African rugby union footballer. He played as a lock for the in Super Rugby and the in the Currie Cup between 2009 and 2014, making 85 first class appearances.[1]
He retired during 2014, aged just 25, due to persistent injuries and to concentrate on his career as a doctor.[2]