1990 Australian Open – Women's singles
| Women's singles | |
|---|---|
| 1990 Australian Open | |
| Champion | Steffi Graf |
| Runner-up | Mary Joe Fernández |
| Score | 6–3, 6–4 |
| Draw | 128 |
| Seeds | 16 |
Two-time defending champion Steffi Graf defeated Mary Joe Fernández in the final, 6–3, 6–4 to win the women's singles tennis title at the 1990 Australian Open. It was her third Australian Open title and ninth major title overall. This was Graf’s record twelfth consecutive major final, dating back to the 1987 French Open, surpassing Martina Navratilova's previous record of eleven consecutive major finals.