1989 ABN World Tennis Tournament – Singles

Stefan Edberg was the defending champion but did not compete that year.

Jakob Hlasek won in the final 6–1, 7–5 against Anders Järryd.

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


 * 1)  Miloslav Mečíř (first round)
 * 2)  Jakob Hlasek (champion)
 * 3) 🇫🇷 Yannick Noah (semifinals)
 * 4) 🇸🇪 Jonas Svensson (first round)
 * 5) 🇦🇺 John Fitzgerald (first round)
 * 6) 🇦🇺 Darren Cahill (semifinals) 
 * 7) 🇸🇪 Anders Järryd (final)
 * 8) 🇸🇪 Magnus Gustafsson (second round)