Piet Pretorius (rugby union)

 Petrus Ingenas Lourens 'Piet' Pretorius (born 17 August 1964) is a former South African rugby union player.

Playing career
Pretorius played his provincial rugby for Northern Transvaal and made his debut for the union on 1989. He was a member of the Northern Transvaal team that won the Currie Cup in 1991. Pretorius toured with the Springboks to France and England in 1992. He did not play in any test matches on tour, but played in six tour matches for the Springboks.