1999 Sydney International – Women's singles
The 1999 Sydney International women's singles was the singles event of the fourteenth edition of the ASB Classic; a WTA Tier II tournament and the second most prestigious women's tennis tournament held in Australia. Arantxa Sánchez Vicario was the defending champion but lost in the quarterfinals to Barbara Schett. Lindsay Davenport won in the final 6–4, 6–3 against Martina Hingis. Seeds. The top four seeds received a bye to the second round.