1989 Stella Artois Indoor – Singles

Yannick Noah was the defending champion but lost in the second round to Slobodan Živojinović.

Boris Becker won in the final 6–1, 6–2 against Alexander Volkov.

Seeds
A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated.


 * 1)  Boris Becker (champion)
 * 2)  Miloslav Mečíř (first round)
 * 3) 🇺🇸 John McEnroe (semifinals)
 * 4)  Jakob Hlasek (second round)
 * 5) 🇫🇷 Henri Leconte (first round)
 * 6) 🇫🇷 Yannick Noah (second round)
 * 7) 🇸🇪 Jonas Svensson (second round)
 * 8) n/a