The 1979 South African Grand Prix (formally the XXV Simba Grand Prix of South Africa) was a Formula One motor race held on 3 March 1979 at Kyalami.

The race, contested over 78 laps, was the third race of the 1979 Formula One season and was won by Gilles Villeneuve, driving a Ferrari.

Teammate and local driver Jody Scheckter finished second, while Jean-Pierre Jarier finished third in a Tyrrell-Ford.