1986 Madrid Open – Singles

Andreas Maurer was the defending champion, but lost in the semifinals to Joakim Nyström.

Nyström won the title by defeating Kent Carlsson 6–1, 6–1 in the final.

Seeds
• # 🇸🇪 Joakim Nyström (champion)

• # 🇸🇪 Anders Järryd (semifinals)

• # Andreas Maurer (semifinals)

• # 🇸🇪 Kent Carlsson (final)

• # 🇺🇸 Lawson Duncan (second round)

• # Ronald Agénor (second round)

• # 🇦🇷 Marcelo Ingaramo (quarterfinals)

• # 🇨🇿 Karel Nováček (first round)