| Pixels: | 220px |
| Category: | Open Wheel Racing |
| Inaugural: | 1964 |
| Country/Region: | Australia |
| Folded: | 1968 |
| Champion Driver: | Max Stewart Garrie Cooper |
The Australian One and a Half Litre Championship was a CAMS sanctioned national motor racing title contested annually from 1964 to 1968. It was open to drivers of cars complying with the Australian 1½ Litre Formula which specified open wheel racing cars fitted with unsupercharged engines using commercially available fuel and limited to 1500cc capacity. The title was staged over a single race in the first two years and over a series of races in the last three.
| Year | Champion | Car | |
|---|---|---|---|
| 1964 | Greg Cusack | Repco Brabham Ford | |
| 1965 | Bib Stillwell | Repco Brabham Ford | |
| 1966 | John Harvey | Repco Brabham Ford | |
| 1967 | Max Stewart | Rennmax Ford | |
| 1968 | Max Stewart Garrie Cooper | Rennmax Ford Elfin Ford |