1989 New South Wales Open – Men's singles
Introduction John Fitzgerald was the defending champion but did not compete that year.Aaron Krickstein won in the final 6–4, 6–2 against Andrei Cherkasov.
Seeds A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated.#  Henri Leconte ''(first round)''#  Andrei Chesnokov ''(first round)''#  '''Aaron Krickstein (champion)'''#  Jonas Svensson ''(first round)''#  Darren Cahill ''(first round)''#  Christo van Rensburg ''(quarterfinals)''#  Wally Masur ''(quarterfinals)''#  Magnus Gustafsson ''(second round)''
Draw
External links *  1989 New South Wales Open Draw