The 1933 Australian Grand Prix was a motor race held at the Phillip Island circuit in Victoria, Australia on 20 March 1933. Organised by the Light Car of Australia, it was the sixth Australian Grand Prix and the sixth to be held at Phillip Island. The race, which was the most important annual car competition in Australia, was open to cars of up to 2300cc engine capacity, the 2000cc limit of previous years having been increased for 1933.