Isabel Cueto won in the final 7–6, 6–2 against Sandra Cecchini.
Seeds A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated.
n/a Barbara Paulus (quarterfinals) Isabel Cueto (champion) Sandra Cecchini (final) Judith Wiesner (second round) Regina Rajchrtová (quarterfinals) Patricia Tarabini (semifinals) Laura Garrone (quarterfinals)
Draw
External links 1989 Estoril Open Draw