| Marnus Potgieter | |
| Fullname: | Marnus Potgieter |
| Birth Date: | 20 June 1999 |
| Birth Place: | South Africa |
| Height: | 1.87m |
| Weight: | 86kg |
| School: | Afrikaanse Hoër Seunskool |
| Position: | Centre / Wing |
| Currentclub: | / |
| Years1: | 2018 |
| Apps1: | 2 |
| Points1: | 0 |
| Years2: | 2020–2021 |
| Apps2: | 4 |
| Points2: | 0 |
| Years3: | 2021– |
| Apps3: | 21 |
| Points3: | 30 |
| Years4: | 2021– |
| Apps4: | 22 |
| Points4: | 35 |
| Clubupdate: | 2 May 2024 |
| Repyears1: | 2019–2020 |
| Repteam1: | South Africa Under-20 |
| Repcaps1: | 7 |
| Reppoints1: | 15 |
Marnus Potgieter (born 20 June 1999) is a South African rugby union player for the in the United Rugby Championship and in the Currie Cup.[1] His regular position is centre or wing.
Potgieter was named in the squad for the Super Rugby Unlocked competition.[2] He made his debut for the Blue Bulls in Round 2 of the 2020 Currie Cup Premier Division against the .[3]