1989 Belgian Open – Singles

Arantxa Sánchez was the defending champion but did not compete that year.

Radka Zrubáková won in the final 7–6, 6–4 against Mercedes Paz.

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


 * 1)  Jana Novotná (quarterfinals)
 * 2)  Radka Zrubáková (champion)
 * 3)  Manon Bollegraf (semifinals)
 * 4) 🇧🇪 Sandra Wasserman (quarterfinals)
 * 5) 🇧🇷 Neige Dias (first round)
 * 6)  Brenda Schultz (quarterfinals)
 * 7) 🇦🇷 Mercedes Paz (final)
 * 8)  Angeliki Kanellopoulou (second round)