1989 Mantegazza Cup – Singles

Helen Kelesi was the defending champion but did not compete that year.

Karine Quentrec won in the final 6–3, 5–7, 6–3 against Cathy Caverzasio.

Seeds
A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated.


 * 1) 🇧🇷 Neige Dias (semifinals)
 * 2) 🇦🇷 Mercedes Paz (quarterfinals)
 * 3) 🇧🇪 Sandra Wasserman (first round)
 * 4) 🇮🇹 Laura Lapi (first round)
 * 5) 🇮🇹 Laura Garrone (second round)
 * 6) 🇮🇹 Laura Golarsa (quarterfinals)
 * 7)  Sabrina Goleš (semifinals)
 * 8) 🇫🇷 Julie Halard (first round)