| Ryno Pieterse | |
| Fullname: | Ryno Pieterse |
| Birth Date: | 6 August 1998 |
| Birth Place: | Witbank, South Africa |
| Relatives: | Bobby van Jaarsveld. Karlien van Jaarsveld |
| Position: | Lock |
| Currentclub: | Castres |
| Years1: | 2020 |
| Apps1: | 3 |
| Points1: | 0 |
| Years2: | 2020–present |
| Clubs2: | Castres |
| Apps2: | 10 |
| Points2: | 15 |
| Clubupdate: | 13 February 2021 |
Ryno Pieterse (born 6 August 1998) is a South African rugby union player for Castres in Top 14.[1] His regular position is lock.
He made his Super Rugby debut while for the in their round 1 match against the in January 2020, coming on as a replacement lock.[2] He signed for the Bulls Super Rugby side for the 2020 Super Rugby season.[3] [4] [5]