| Ruan Kramer | |
| Fullname: | Ruan Cornelius Adriaan Kramer |
| Birth Date: | 3 August 1995 |
| Birth Place: | Bloemfontein, South Africa |
| School: | Grey College |
| University: | University of KwaZulu-Natal |
| Position: | Prop |
| Youthyears1: | 2008–2013 |
| Youthyears2: | 2014–2016 |
| Years1: | 2016–2017 |
| Apps1: | 13 |
| Points1: | 0 |
| Years2: | 2017 |
| Apps2: | 12 |
| Points2: | 5 |
| Years3: | 2018–2019 |
| Apps3: | 22 |
| Points3: | 0 |
| Years4: | 2020– |
| Apps4: | 14 |
| Points4: | 0 |
| Clubupdate: | 10 July 2022 |
Ruan Cornelius Adriaan Kramer (born 3 August 1995) is a South African rugby union player for in the Currie Cup and the Rugby Challenge. His regular position is prop.