1999 Toray Pan Pacific Open – Singles
The 1999 Toray Pan Pacific Open singles was the singles event of the twenty-fourth edition of the Toray Pan Pacific Open Tennis Tournament, the first WTA Tier I tournament of the year. Lindsay Davenport was the defending champion but lost in the quarterfinals to Amanda Coetzer. Martina Hingis won in the final 6–2, 6–1 against Coetzer. Seeds. The top four seeds received a bye to the second round.