van der Walt is an Afrikaans surname. Notable people with the surname include:
Deon van der Walt (1958–2005), South African opera singer
Eduan van der Walt (born 1987), South African rugby union player
Lucien van der Walt (born 1972), South African sociologist, labour educator
Piet van der Walt, Namibian businessman and politician
Philip van der Walt (born 1989), South African rugby union player
Tjaart van der Walt (born 1974), South African golfer
Wimpie van der Walt (born 1989), South African rugby union player
