1999 St. Petersburg Open – Singles

Richard Krajicek was the defending champion but not did compete that year.

Marc Rosset won in the final 6–3, 6–3 against David Prinosil.

Seeds
• # Jan Siemerink (semifinals)

• # Marc Rosset (champion)

• # 🇸🇪 Magnus Gustafsson (second round)

• # 🇷🇺 Marat Safin (semifinals)

• # 🇨🇿 Daniel Vacek (first round)

• # 🇸🇰 Dominik Hrbatý (quarterfinals)

• # 🇷🇴 Andrei Pavel (quarterfinals)

• # 🇮🇹 Davide Sanguinetti (first round)