Willem Abraham Viljoen (born 5 March 1985) is a South African badminton player.

[1] He competed for South Africa at the 2012 London Summer Olympics,[2] and at the Glasgow 2014 Commonwealth Games.

[3] At the All-African Games, he has collected 2 golds and six silvers.

Her sister Annari Viljoen also the Olympian who was competed in London 2012.

[4] Men's doubles Mixed doubles Men's singles Men's doubles Mixed doubles Men's singles Men's doubles Mixed doubles