| 1975 Australian Open | |
|---|---|
| Date | 21 December 1974 – 1 January 1975 |
| Edition | 63rd |
| Category | Grand Slam (ITF) |
| Surface | Grass |
| Location | Melbourne, Australia |
| Venue | Kooyong Lawn Tennis Club |
| Champions | |
| Men's singles | |
 John Newcombe | |
| Women's singles | |
| Evonne Goolagong | |
| Men's doubles | |
| John Alexander / Phil Dent | |
| Women's doubles | |
Evonne Goolagong /  Peggy Michel | |
The 1975 Australian Open was a tennis tournament played on outdoor grass courts at the Kooyong Lawn Tennis Club in Melbourne in Australia and was held from 21 December 1974 to 1 January 1975. It was the 63rd edition of the Australian Open and the first Grand Slam tournament of the year. The singles titles were won by Australians John Newcombe and Evonne Goolagong.