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 British Fred Perry and Australian Joan Hartigan Bathurst.
Fred Perry defeated Jack Crawford 6–3, 7–5, 6–1
Joan Hartigan Bathurst defeated Margaret Molesworth 6–1, 6–4
Pat Hughes / Fred Perry defeated Adrian Quist / Don Turnbull 6–8, 6–3, 6–4, 3–6, 6–3
Margaret Molesworth / Emily Hood Westacott defeated Joan Hartigan Bathurst / Ula Valkenburg 6–8, 6–4, 6–4
Joan Hartigan Bathurst / Edgar Moon defeated Emily Hood Westacott / Ray Dunlop 6–3, 6–4