The 1964 Australian Championships was a tennis tournament that took place on outdoor grass courts at the Milton Courts, Brisbane, Australia from 4 January to 13 January. It was the 52nd edition of the Australian Championships (now known as the Australian Open), the 6th held in Brisbane, and the first Grand Slam tournament of the year. The singles titles were won by Australians Roy Emerson and Margaret Court.
Roy Emerson defeated Fred Stolle 6–3, 6–4, 6–2 
Margaret Court defeated Lesley Turner Bowrey 6–3, 6–2 
Bob Hewitt / Fred Stolle defeated Ken Fletcher / Roy Emerson 6–4, 7–5, 3–6, 4–6, 14–12 
Judy Tegart Dalton / Lesley Turner Bowrey defeated Robyn Ebbern / Margaret Smith Court 6–4, 6–4 
Margaret Smith Court / Ken Fletcher defeated Jan Lehane O'Neill / Mike Sangster 6–3, 6–2