1988 Rainha Cup – Singles

Neige Dias was the defending champion but lost in the quarterfinals to Andrea Vieira.

Mercedes Paz won in the final 7–5, 6–2 against Rene Simpson.

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


 * 1) 🇦🇷 Bettina Fulco (quarterfinals)
 * 2) 🇧🇷 Neige Dias (quarterfinals)
 * 3) 🇦🇷 Mercedes Paz (champion)
 * 4) 🇦🇷 Adriana Villagrán (first round)
 * 5)  Céline Cohen (first round)
 * 6) 🇧🇷 Patricia Medrado (second round)
 * 7)  Veronika Martinek (first round)
 * 8) 🇧🇷 Gisele Miró (quarterfinals)