The 1973 Australian Formula 2 Championship was a CAMS sanctioned motor racing title open to Australian Formula 2 racing cars.
[1] It was the seventh Australian Formula 2 Championship to be awarded by CAMS.
[2] The championship was dominated by multiple-championship winning driver Leo Geoghegan, who scored a perfect 54 points from six round wins over the course of the season.
The championship was contested over a seven-round series with one race per round.
[3] Championship points were awarded on a 9-6-4-3-2-1 basis to the first six eligible finishers at each round.