1991 Swedish Open – Singles

Richard Fromberg was the defending champion, but did not compete this year.

Magnus Gustafsson won the title by defeating Alberto Mancini 6–1, 6–2 in the final.

Seeds
• # 🇷🇺 Andrei Cherkasov (first round)

• # 🇸🇪 Magnus Gustafsson (champion)

• # Alexander Volkov (semifinals)

• # 🇸🇪 Anders Järryd (first round)

• # Marcelo Filippini (second round)

• # 🇸🇪 Nicklas Kulti (second round)

• # Mark Koevermans (first round)

• # 🇦🇷 Alberto Mancini (final)