The 1975 South African Grand Prix (formally the XXI Lucky Strike Grand Prix of South Africa) was a Formula One motor race held at Kyalami on 1 March 1975. It was race 3 of 14 in both the 1975 World Championship of Drivers and the 1975 International Cup for Formula One Manufacturers. It was the 21st South African Grand Prix since the first Grand Prix was held in 1934 and the ninth to be held at Kyalami just outside Johannesburg. It was held over 78 laps of the four kilometre circuit for a race distance of 320 kilometres.