1966 Australian Grand Prix
The 1966 Australian Grand Prix was a motor race staged on 20 February 1966 at the Lakeside Circuit in Queensland, Australia. The race, which had 15 starters, was open to Racing Cars complying with the Australian National Formula or the Australian 1½ Litre Formula. It was both the 31st Australian Grand Prix and race 6 of the 1966 Tasman Championship for Drivers.
Graham Hill won the race driving BRM P261. It was his only Australian Grand Prix victory.
Classification
Results as follows:| Pos | No. | Driver | Entrant | Car / Engine | Laps | Time |
| 1 | 2 |  Graham Hill | Owen Racing Organisation | BRM P261 / BRM V8 1.9 | 66 | 1h 02m 38.0s |
| 2 | 4 |  Frank Gardner | Alec Mildren Racing P/L | Brabham BT11A / Climax FPF | 66 | 1h 02m 55.0s |
| 3 | 1 | Jim Clark | Team Lotus | Lotus 39 / Climax FPF | 66 | 1h 02m 57.0s |
| 4 | 17 |  Jim Palmer | Jim Palmer Motor Racing | Lotus 32B / Climax FPF | 64 | |
| 5 | 14 | Kevin Bartlett | Alec Mildren Racing P/L | Brabham BT2 / Ford 1.5 | 63 | |
| 6 | 20 | Glyn Scott | Glyn Scott Motors | Lotus 27 / Ford 1.5 | 63 | |
| 7 | 16 | Andy Buchanan | Wilson Motors | Brabham BT7A / Climax FPF | 63 | |
| 8 | 6 | John Harvey | R.C. Phillips Sports Car World | Brabham BT14 / Ford 1.5 | 62 | |
| 9 | 5 | Leo Geoghegan | Total Team | Lotus 32 / Ford 1.5 | 39 | Bent Wishbone |
| Ret | 11 | Spencer Martin | Scuderia Veloce | Brabham BT11A / Climax FPF | 47 | Fuel Pump |
| Ret | 7 | Greg Cusack | Greg Cusack | Brabham BT10 / Ford 1.5 | 30 | Accident |
| Ret | 3 | Jackie Stewart | Owen Racing Organisation | BRM P261 / BRM V8 1.9 | 28 | Gearbox |
| Ret | 26 | Mel McEwin | Mel McEwin | Elfin Mono / Ford 1.5 | 26 | Fuel Pump |
| Ret | 19 | John McDonald | Bill Patterson Motors | Cooper T70/79 / Climax FPF | 23 | Water Pump |
| Ret | 9 | Dennis Marwood | Ecurie Rothmans | Cooper T66 / Climax FPF | 7 | Oil Pressure |
| DNQ | 23 | Paul Bolton | Town & Country Garage | Brabham BT6 / Ford 1.5 | ||
| DNQ | 25 | Les Howard | Howard & Sons Racing Team | Lotus 27 / Ford 1.5 | ||
| DNQ | 50 | Bob Jane | Autoland Pty. Ltd. | Elfin Mono / Ford 1.5 | ||
| DNQ | 21 | Roly Levis | R.A. Levis | Brabham BT6 / Ford 1.5 | ||
| DNQ | 44 | Max Stewart | Max Stewart Motors | Rennmax BN1 / Ford 1.5 | ||
| DNQ | 10 | Peter Williamson | J. McGuire | Elfin FJ / Hillman 1.0 |