| 1927 Australian Championships | |
|---|---|
| Date | 22 January – 31 January 1927 |
| Edition | 20th |
| Category | Grand Slam (ITF) |
| Surface | Grass |
| Location | Melbourne, Australia |
| Venue | Kooyong Stadium |
| Champions | |
| Men's singles | |
 Gerald Patterson | |
| Women's singles | |
| Esna Boyd | |
| Men's doubles | |
| Jack Hawkes / Gerald Patterson | |
| Women's doubles | |
| Louie Bickerton / Meryl O'Hara Wood | |
| Mixed doubles | |
| Esna Boyd / Jack Hawkes | |
| Boys' singles | |
| Jack Crawford | |
| Boys' doubles | |
| Jack Crawford / Harry Hopman | |
The 1927 Australian Championships was a tennis tournament that took place on outdoor Grass courts at the Kooyong Stadium in Melbourne, Australia from 22 January to 1 February. It was the 20th edition of the Australian Championships (now known as the Australian Open), the 5th held in Melbourne, and the first Grand Slam tournament of the year. Australians Gerald Patterson and Esna Boyd won the singles titles.