1964 Australian One and a Half Litre Championship
The 1964 Australian One and a Half Litre Championship was an Australian motor racing competition open to Australian 1½ Litre Formula racing cars. It was authorised by the Confederation of Australian Motor Sport as an Australian National Title. The championship was contested over a 34 lap, 76½ miles race held at the Warwick Farm circuit in New South Wales, Australia on 6 September 1964. It was the inaugural Australian One and a Half Litre Championship, held in what was the inaugural year of the Australian 1½ Litre Formula.
The championship was won by Greg Cusack driving a Repco-Brabham-Ford.