Dayan Leslie van der Westhuizen (born (1994-04-05)5 April 1994 in Wellington, South Africa) is a South African rugby union player, currently playing with UP Tuks in the Varsity Cup competition, the Blue Bulls in domestic South African rugby and the Bulls in Super Rugby. His regular position is tighthead prop.
Having grown up in Wellington in the Western Cape province in South Africa, Van der Westhuizen was selected to represent Border at the annual Under-16 Grant Khomo Week competition held in Upington, where he scored a try in their match against the Pumas.