| Jonathan Adendorf | |
| Fullname: | Jonathan Wallis Adendorf |
| Birth Date: | 23 August 1985 |
| Birth Place: | Napier, South Africa |
| Weight: | 1100NaN0 |
| School: | Napier High School |
| University: | Stellenbosch University |
| Position: | Flanker |
| Years1: | 2011 |
| Apps1: | 5 |
| Points1: | 0 |
| Years2: | 2012–present |
| Apps2: | 83 |
| Points2: | 30 |
| Amatyears1: | 2008–2010 |
| Amatapps1: | 24 |
| Amatpoints1: | 25 |
| Clubupdate: | 8 July 2018 |
Jonathan Wallis 'Kraai' Adendorf (born 23 August 1985) is a South African rugby union player for in the Currie Cup and in the Rugby Challenge. His regular playing position is flanker. Adendorf previously played for the Pumas. He has also played for Maties in the Varsity Cup.