Willem Viljoen
Willem Abraham Viljoen (an haife shi a ranar 5 ga watan Maris 1985) ɗan wasan badminton ne na Afirka ta Kudu.  Ya yi takara don Afirka ta Kudu a gasar Olympics ta lokacin bazara ta shekarar 2012,  da kuma a Glasgow 2014 Commonwealth Games.  A gasar cin kofin Afrika, ya tara zinare 2 da azurfa shida. 'Yar'uwarsa Annari Viljoen ita ma 'yar wasan Olympian da ta fafata a London a shekarar 2012.

Nasarorin da aka samu

Duk Wasannin Afirka (All African Games) 
Men's doubles 

Mixed doubles

Gasar Cin Kofin Afirka 
Men's singles 

Men's doubles 

Mixed doubles

BWF International Challenge/Series (24 titles, 13 runners-up) 
Men's singles 

Men's doubles 

Mixed doubles 

  BWF International Challenge tournament
  BWF International Series tournament
  BWF Future Series tournament

Manazarta 

Rayayyun mutane
Haihuwan 1985