| Elrigh Louw | |
| Birth Date: | 20 September 1999 |
| Birth Place: | Pretoria, South Africa |
| School: | Hoërskool Transvalia, Vanderbijlpark |
| Position: | Number 8 / Flanker |
| Currentclub: | / |
| Youthyears1: | 2017 |
| Youthyears2: | 2018–2019 |
| Years1: | 2019–2020 |
| Apps1: | 12 |
| Points1: | 5 |
| Years2: | 2020– |
| Apps2: | 72 |
| Points2: | 90 |
| Years3: | 2020– |
| Apps3: | 14 |
| Points3: | 20 |
| Repyears1: | 2019 |
| Repteam1: | South Africa Under-20 |
| Repcaps1: | 4 |
| Reppoints1: | 0 |
| Repyears2: | 2022– |
| Repteam2: | South Africa |
| Repcaps2: | 5 |
| Reppoints2: | 5 |
| Clubupdate: | 23 July 2022 |
| Repupdate: | 23 July 2022 |
Elrigh Louw (born 20 September 1999) is a South African professional rugby union player who currently plays for the in the United Rugby Championship and for the in the Currie Cup. He can play as a flanker or 8th man.
Louw attended and played rugby for Hoërskool Transvalia, which earned him a selection to the squad for the Under-18 Craven Week. After school, Louw moved to Bloemfontein to join the, representing them at Under-19 and Under-21 level. He was also called up to the South Africa Under-20 squad, representing them at the 2019 World Rugby Under 20 Championship in Argentina.[1]
In 2019, Louw joined the Port Elizabeth-based franchise the . He made his first class debut in the opening round of the 2019–20 Pro14 season, coming on as a replacement their 27–31 defeat to the .[2] In his second appearance the following week, he scored his first senior try in a 20–31 defeat to .[3]