1990 Lipton International Players Championships – Women's singles
| Women's singles | |
|---|---|
| 1990 Lipton International Players Championships | |
| Champion | Monica Seles |
| Runner-up | Judith Wiesner |
| Score | 6–1, 6–2 |
| Draw | 96 |
| Seeds | 32 |
Monica Seles defeated Judith Wiesner in the final, 6–1, 6–2 to win the women's singles tennis title at the 1990 Miami Open.
Gabriela Sabatini was the defending champion, but lost in the quarterfinals to Conchita Martínez.