1968 Australian One and a Half Litre Championship

The 1968 Australian One and a Half Litre Championship was a CAMS sanctioned motor racing title for drivers of Australian 1½ Litre Formula racing cars. It was the fifth and final Australian One and a Half Litre Championship to be awarded prior to the demise of the formula at the end of 1968.

Calendar
The title was contested over a six heat series, run concurrently with the 1968 Australian Drivers' Championship.
 * Heat 1, Bathurst Gold Star Trophy, Mount Panorama, Bathurst, New South Wales, 15 April
 * Heat 2, Governor's Trophy, Lakeside, Queensland, 28 July
 * Heat 3, Rothman's Trophy, Surfers Paradise, Queensland, 24 August
 * Heat 4, Lombard (Aust.) Victoria Trophy, Sandown Park, Victoria, 15 September
 * Heat 5, Advertiser Trophy, Mallala, South Australia, 14 October
 * Heat 6, Hordern Trophy, Warwick Farm, New South Wales, 1 December

Points system
Championship points were awarded on a 9-6-4-3-2-1 basis to the drivers of the six best placed Australian 1½ Litre Formula cars at each heat. The best five results from the six heats could be retained by each driver.