1986 Donnay Indoor Championships – Singles

Anders Järryd was the defending champion, but lost in the quarterfinals this year.

Mats Wilander won the title, defeating Broderick Dyke 6–2, 6–3 in the final.

Seeds

 * 1) 🇸🇪 Mats Wilander (champion)
 * 2)  Boris Becker (first round)
 * 3) 🇸🇪 Joakim Nyström (semifinals)
 * 4) 🇸🇪 Anders Järryd (quarterfinals)
 * 5)  Miloslav Mečíř (semifinals)
 * 6) 🇺🇸 Kevin Curren (quarterfinals)
 * 7) 🇫🇷 Henri Leconte (first round)
 * 8) 🇸🇪 Henrik Sundström (first round)