1998 St. Petersburg Open – Singles

Thomas Johansson was the defending champion but lost in the semifinal 6–4, 6–4 against Richard Krajicek.

Richard Krajicek won in the final 6–4, 7–6(7–5) against Marc Rosset.

Seeds
• # Richard Krajicek (champion)

• # 🇫🇷 Cédric Pioline (semifinals)

• # 🇫🇷 Fabrice Santoro (quarterfinals)

• # Marc Rosset (final)

• # 🇸🇪 Thomas Johansson (semifinals)

• # 🇸🇰 Dominik Hrbatý (quarterfinals)

• # 🇩🇪 Marc-Kevin Goellner (second round)

• # 🇨🇿 Daniel Vacek (quarterfinals)