Lyndon Ferns
 Lyndon Ferns (born 24 September 1983 in Pietersburg South Africa) is a retired Olympic gold-medalist and former world record swimmer from South Africa. He swam for South Africa at the 2004 and 2008 Olympics.At the 2004 Olympics he was a member of the South Africa's Men's 4×100 m freestyle relay that won the event in a world record.