1989 ABN World Tennis Tournament – Singles
Introduction 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.#  Miloslav Mečíř ''(first round)''#  '''Jakob Hlasek (champion)'''#  Yannick Noah ''(semifinals)''#  Jonas Svensson ''(first round)''#  John Fitzgerald ''(first round)''#  Darren Cahill ''(semifinals) ''#  Anders Järryd ''(final)''#  Magnus Gustafsson ''(second round)''
Draw
External links *  1989 ABN World Tennis Tournament draw