The 1934 Australian Championships was a tennis tournament that took place on outdoor Grass courts at the White City Tennis Club, Sydney, Australia from 18 January to 27 January. It was the 27th edition of the Australian Championships (now known as the Australian Open), the 7th held in Sydney, and the first Grand Slam tournament of the year. The singles titles were won by Briton Fred Perry and Australian Joan Hartigan.
| 1934 Australian Championships | |
|---|---|
| Date | 18–27 January 1934 |
| Edition | 27th |
| Category | Grand Slam (ITF) |
| Surface | Grass |
| Location | Sydney, Australia |
| Venue | White City Tennis Club |
| Champions | |
| Men's singles | |
 Fred Perry | |
| Women's singles | |
 Joan Hartigan | |
| Men's doubles | |
| Pat Hughes / Fred Perry | |
| Women's doubles | |
| Mall Molesworth / Emily Hood Westacott | |
| Mixed doubles | |
| Joan Hartigan / Edgar Moon | |
| Boys' singles | |
| Neil Ennis | |
| Girls' singles | |
| May Blick | |
| Boys' doubles | |
| Neil Ennis / Colin McKenzie | |
| Girls' doubles | |
| Ethyl Chrystal / Edna McColl | |
Finals edit
Men's singles edit
Fred Perry defeated Jack Crawford 6–3, 7–5, 6–1
Women's singles edit
Joan Hartigan defeated Mall Molesworth 6–1, 6–4
Men's doubles edit
Pat Hughes / Fred Perry defeated Adrian Quist / Don Turnbull 6–8, 6–3, 6–4, 3–6, 6–3
Women's doubles edit
Mall Molesworth / Emily Hood Westacott defeated Joan Hartigan / Ula Valkenburg 6–8, 6–4, 6–4
Mixed doubles edit
Joan Hartigan / Edgar Moon defeated Emily Hood Westacott / Roy Dunlop 6–3, 6–4