| 1909 Australasian Championships | |
|---|---|
| Date | 16–25 October 1909 |
| Edition | 5th |
| Category | Grand Slam |
| Surface | Grass |
| Location | Perth, Western Australia, Australia |
| Venue | Perth Zoo |
| Champions | |
| Singles | |
 Anthony Wilding | |
| Doubles | |
 J. P. Keane / Ernie Parker | |
The 1909 Australasian Championships was a tennis tournament that took place on outdoor grass courts at Perth Zoo, Perth, Australia from 16 October to 25 October 1909. It was the fifth edition of the Australasian Championships (now known as the Australian Open), the first held in Perth and the third Grand Slam tournament of the year.[1][2] Anthony Wilding won the singles title, his second after 1906.[3]
- ^ "Lawn Tennis in Perth". The Sunday Sun. 17 October 1909. p. 1 – via National Library of Australia.
- ^ "Lawn Tennis". Western Mail. 23 October 1909. p. 37 – via National Library of Australia.
- ^ "Lawn Tennis Tournament". Daily News. 26 October 1909. p. 3 – via National Library of Australia.