1991 Kremlin Cup – Singles

Andrei Cherkasov was the defending champion and won in the final 7–6(7–2), 3–6, 7–6(7–5), against Jakob Hlasek.

Seeds
• # Karel Nováček (second round)

• # Petr Korda (first round)

• # Jakob Hlasek (final)

• # Andrei Cherkasov (champion)

• # Jan Siemerink (quarterfinals)

• # n/a

• # 🇦🇹 Horst Skoff (first round)

• # Alexander Volkov (semifinals)