Monica Seles defeated Jana Novotná in the final, 5–7, 6–3, 6–1 to win the women's singles tennis title at the 1991 Australian Open. It was her first Australian Open title and second major title overall. Seles saved a match point en route to the title, in the semifinals against Mary Joe Fernández. Seles was making her tournament debut.
Steffi Graf was the three-time defending champion, but lost to Novotná in the quarterfinals.
Seeds The seeded players are listed below. Monica Seles is the champion; others show the round in which they were eliminated.
Steffi Graf (quarterfinals) Monica Seles (champion) Mary Joe Fernández (semifinals) Gabriela Sabatini (quarterfinals) Katerina Maleeva (quarterfinals) Arantxa Sánchez Vicario (semifinals) Manuela Maleeva (second round) Zina Garrison (fourth round) Helena Suková (third round) Jana Novotná (finalist) Natasha Zvereva (fourth round) Barbara Paulus (second round) Amy Frazier (fourth round) Rosalyn Fairbank-Nideffer (third round) Laura Gildemeister (second round) Sabine Appelmans (fourth round)
Qualifying
Draw
Key Q = Qualifier WC = Wild card LL = Lucky loser r = Retired
Finals
Earlier rounds
Section 1
Section 2
Section 3
Section 4
Section 5
Section 6
Section 7
Section 8
External links 1991 Australian Open – Women's draws and results at the International Tennis Federation