| Singles | |
|---|---|
| 1999 Toyota Princess Cup | |
| Champion |
|
| Runner-up |
|
| Final score | 7–5, 7–6(7–1) |
The 1999 Toyota Princess Cup – Singles was the tennis singles event of the third edition of the first hardcourt tournament after the US Open. Monica Seles was the two-time defending champion, but was defeated by Lindsay Davenport in the final to win the title.