The 1924 Australasian Championships was a tennis tournament that took place on outdoor Grass courts at the Warehouseman's Cricket Ground in Melbourne, Australia from 19 January to 26 January. It was the 17th edition of the Australasian Championships (now known as the Australian Open), the 3rd held in Melbourne, and the first Grand Slam tournament of the year. The singles titles were won by Australians James Anderson and Sylvia Lance Harper.

James Anderson defeated Richard Schlesinger 6–3, 6–4, 3–6, 5–7, 6–3

Sylvia Lance Harper defeated Esna Boyd 6–3, 3–6, 8–6