| Champ: | Martina Hingis |
| Runner: |  Monica Seles |
| Score: | 7–6(8–6), 4–6, 6–3 |
| Type: | women |
| Draw: | 28 (4 / 3) |
| Seeds: | 8 |
| Before Name: | Toray Pan Pacific Open – Singles |
| After Name: | Toray Pan Pacific Open – Singles |
| Main Name: | Pan Pacific Open |
See main article: 2002 Toray Pan Pacific Open.
Martina Hingis defeated Monica Seles in the final, 7–6(8–6), 4–6, 6–3 to win the singles tennis title at the 2002 Pan Pacific Open.
Lindsay Davenport was the reigning champion, but did not compete this year.
The first four seeds received a bye into the second round.