1989 U.S. Women's Hard Court Championships – Singles
Introduction Steffi Graf was the defending champion and won in the final 6–1, 6–4 against Ann Henricksson.
Seeds A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated.#  '''Steffi Graf (champion)'''#  Manuela Maleeva ''(second round)''#  Natasha Zvereva ''(first round)''#  Claudia Kohde-Kilsch ''(first round)''#  Patty Fendick ''(quarterfinals)''#  Hana Mandlíková ''(semifinals)''#  Gretchen Magers ''(first round)''#  Terry Phelps ''(quarterfinals)''
Draw
References *  1989 U.S. Women's Hard Court Championships Draw