The 1986 Dutch Open was a Grand Prix men's tennis tournament staged in Hilversum, Netherlands. The tournament was played on outdoor clay courts and was held from 28 July until 3 August 1986. It was the 29th edition of the tournament. Seventh-seeded Thomas Muster, who entered on a wildcard, won the singles title.[1]
See main article: 1986 Dutch Open – Singles. 
Thomas Muster defeated 
Jakob Hlasek 6–1, 6–3, 6–3
See main article: 1986 Dutch Open – Doubles. Miloslav Mečíř / Tomáš Šmíd defeated Tom Nijssen / Johan Vekemans 6–4, 6–2