1991 St. Petersburg Open – Singles

Leila Meskhi was the defending champion, but chose to compete at Bayotte in the same week.

Larisa Savchenko-Neiland won the title by defeating Barbara Rittner 3–6, 6–3, 6–4 in the final.

Seeds
• # Elena Brioukhovets (quarterfinals)

• # Natalia Medvedeva (second round)

• # 🇩🇪 Barbara Rittner (final)

• # 🇫🇷 Isabelle Demongeot (quarterfinals)

• # Larisa Savchenko-Neiland (champion)

• # 🇺🇸 Donna Faber (first round)

• # 🇬🇧 Jo Durie (semifinals)

• # 🇦🇹 Petra Ritter (second round)