See main article: 1973 Australian Open. Margaret Court defeated Evonne Goolagong in the final, 6–4, 7–5 to win the women's singles tennis title at the 1973 Australian Open.
Virginia Wade was the defending champion, but she lost to Kazuko Sawamatsu in the quarterfinals.
The seeded players are listed below. Margaret Court is the champion; others show the round in which they were eliminated.
Margaret Court (champion) Evonne Goolagong (finalist)
Virginia Wade (quarterfinals) Kerry Melville (semifinals) Patricia Coleman (second round)
Kazuko Sawamatsu (semifinals) Kerry Harris (quarterfinals) Karen Krantzcke (quarterfinals) Barbara Hawcroft (third round) Marilyn Tesch (third round) Janet Young (second round)