The 1966 Australian Grand Prix was a motor race staged on 20 February 1966 at the Lakeside Circuit in Queensland, Australia. The race, which had 15 starters, was open to Racing Cars complying with the Australian National Formula or the Australian 1½ Litre Formula. It was both the 31st Australian Grand Prix and race 6 of the 1966 Tasman Championship for Drivers.

Lakeside Park, formerly known as Lakeside International Raceway is a motor racing circuit located in Kurwongbah, City of Moreton Bay, Queensland, Australia. It is 30 km (19 mi) north of Brisbane, and lies adjacent to Lake Kurwongbah.