1999 Sydney International – Men's singles

Karol Kučera was the defending champion but lost to Àlex Corretja in the semifinals.

Todd Martin won the title, defeating Corretja 6–3, 7–6(7–5) in the final.

Seeds

 * 1) 🇪🇸 Àlex Corretja (final)
 * 2) 🇦🇺 Patrick Rafter (first round)
 * 3) 🇪🇸 Carlos Moyá (second round)
 * 4) 🇸🇰 Karol Kučera (semifinals)
 * 5) 🇬🇧 Greg Rusedski (first round)
 * 6)  Richard Krajicek (second round)
 * 7) 🇪🇸 Albert Costa (quarterfinals)
 * 8) 🇺🇸 Todd Martin (champion)