1991 Copenhagen Open – Singles

No defending champions were officially declared as the last edition dates back to 1976, which was won by Lars Elvstrøm.

Jonas Svensson won the title by defeating Anders Järryd 6–7(5–7), 6–2, 6–2 in the final.

Seeds
• # 🇸🇪 Jonas Svensson (champion)

• # Andrei Chesnokov (second round)

• # Jakob Hlasek (semifinals)

• # Karel Nováček (quarterfinals)

• # Ronald Agénor (second round)

• # 🇦🇺 Todd Woodbridge (semifinals)

• # 🇸🇪 Christian Bergström (quarterfinals)

• # 🇸🇪 Anders Järryd (final)