The 1928 Australian Grand Prix was a motor race held on the Phillip Island road circuit, on Phillip Island, Victoria, Australia on 31 March 1928. Although now known as the first Australian Grand Prix, the race was actually staged as the 100 Miles Road Race and it did not assume the Australian Grand Prix title until some years later. It was organised by the Victorian Light Car Club. The overall winner was Arthur Waite driving an Austin 7. The winning car averaged 56.25 mph (90.50 km/h).