| Antonie Claassen | |
| Birth Place: | Durban, South Africa |
| Birth Date: | 20 October 1984 |
| Weight: | 104kg (229lb) |
| Ru Position: | Flanker |
| Ru Clubyears: | 2007–2012 2012–2014 2014–present |
| Ru Clubcaps: | 128 53 145 |
| Ru Clubpoints: | (55) (30) (55) |
| Ru Province: | Blue Bulls |
| Ru Provinceyears: | 2007 |
| Ru Provincecaps: | 1 |
| Ru Provincepoints: | (0) |
| Ru Nationalyears: | 2013–2014 |
| Ru Nationalcaps: | 6 |
| Ru Nationalpoints: | (0) |
| Ru Ntupdate: | 8 March 2014 |
| Ru Clubupdate: | 11 September 2020 |
Antonie Delport Claassen (born 20 October 1984) is a French and South African rugby union player. His position is Flanker and he currently plays for Racing 92 in the Top 14.[1] He began his career with Blue Bulls in his native South Africa before moving to CA Brive in 2006. His father, Wynand Claassen was a South African international and Springboks captain in 1981–82. Claassen made his debut for France in the 2013 Six Nations Championship, qualifying on residency grounds.
He graduated from Durban High School in 2002, and represented South Africa at U19 level.