1986 Dutch Open – Singles

The 1986 Dutch Open – Singles was an event of the 1975 Dutch Open tennis tournament and was played on outdoor clay courts at 't Melkhuisje in Hilversum in the Netherlands from 28 July until 3 August 1986 The draw comprised 32 players and 8 of them were seeded. Ricki Osterthun was the defending Dutch Open singles champion but lost in the second round. Seventh-seeded Thomas Muster won the title by defeating Jakob Hlasek in the final, 6–1, 6–3, 6–3.

Seeds
• # Miloslav Mečíř (quarterfinals)

• # 🇪🇸 Emilio Sánchez (semifinals)

• # Jakob Hlasek (final)

• # (Withdrew)

• # 🇮🇹 Paolo Canè (quarterfinals)

• # Michiel Schapers (second round)

• # 🇦🇹 Thomas Muster (champion)

• # Marián Vajda (quarterfinals)