The 1988 Australian Sports Car Championship was an Australian motor racing competition open to Group 2A Sports Cars (including Clubman cars at the sole discretion of CAMS), FISA C1 cars (up to 6 litres), FISA C2 cars (up to 5 litres) and Sports Sedans. It was sanctioned by the Confederation of Australian Motor Sport as an Australian National Title. The title, which was the 20th Australian Sports Car Championship, was contested over a four-round series. As of 2025 this was the final Australian Sports Car Championship.
The championship was won by Alan Nolan driving a Nola Chevrolet.
The championship was contested over a four-round series with one race per round.
A fifth round, scheduled to be held at Calder Park, did not take place.
Competing cars were classified into one of three engine displacement classes:
Championship points were awarded on a three tier system to the first twenty finishers in each round.