1989 Grand Prix de Tennis de Lyon – Singles
Introduction Yahiya Doumbia was the defending champion but lost in the first round to Jakob Hlasek.John McEnroe won in the final 6–3, 7–6 against Hlasek.
Seeds #  Jakob Hlasek ''(final)''#  '''John McEnroe (champion)'''#  Henri Leconte ''(quarterfinals)''#  Jonas Svensson ''(semifinals)''#  Anders Järryd ''(semifinals)''#  Magnus Gustafsson ''(quarterfinals)''#  Guy Forget ''(second round)''#  Patrik Kühnen ''(quarterfinals)''
Draw ===Finals======Top half======Bottom half===
External links *  1989 Grand Prix de Tennis de Lyon Draw