The 1975 Australian Grand Prix was a motor race for Australian Formula 1 and Australian Formula 2 racing cars, held on a very wet track at the Surfers Paradise International Raceway in Queensland, Australia on 31 August 1975. It was the fortieth Australian Grand Prix and was also Round 1 of the 1975 Australian Drivers' Championship.
1974 Australian Grand Prix winner Max Stewart won his second AGP ahead of John Leffler and Ray Winter.