The 1974 Australian Sports Car Championship was an Australian motor racing competition open to Group A Sports Cars and Group D Production Sports Cars. It was authorised by the Confederation of Australian Motor Sport as an Australian National Title.
Th championship, which was the sixth Australian Sports Car Championship, was won by Henry Michell driving an Elfin 360 Repco.
The championship was contested over a four-round series with one race per round.
Cars competed in two engine displacement classes:
Championship points were awarded on a 9-6-4-3-2-1 basis to the first six place-getters in each class. Additional points were awarded on a 4-3-2-1 basis to the first four place-getters outright, irrespective of class.