The 1930 Australian Championships was a tennis tournament that took place on outdoor Grass courts at the Kooyong Stadium in Melbourne, Australia from 18 January to 27 January. It was the 23rd edition of the Australian Championships (now known as the Australian Open), the 6th held in Melbourne, and the first Grand Slam tournament of the year. Australians Gar Moon and Daphne Akhurst won the singles titles.
See main article: 1930 Australian Championships – Men's singles. 
Gar Moon defeated Harry Hopman 6–3, 6–1, 6–3
See main article: 1930 Australian Championships – Women's singles. Daphne Akhurst defeated Sylvia Harper 10–8, 2–6, 7–5
See main article: 1930 Australian Championships – Men's doubles. Jack Crawford / Harry Hopman defeated Tim Fitchett / Jack Hawkes 8–6, 6–1, 2–6, 6–3
See main article: 1930 Australian Championships – Women's doubles. Emily Hood / Mall Molesworth defeated Marjorie Cox / Sylvia Harper 6–3, 0–6, 7–5
See main article: 1930 Australian Championships – Mixed doubles. Nell Hall / Harry Hopman defeated Marjorie Cox / Jack Crawford 11–9, 3–6, 6–3