1990 Jello Tennis Classic – Singles

Katerina Maleeva was the defending champion, but lost in the semifinals to Leila Meskhi.

Conchita Martínez won the title by defeating Meskhi 6–4, 6–2 in the final.

Seeds
• # 🇧🇬 Katerina Maleeva (semifinals)

• # 🇪🇸 Conchita Martínez (champion)

• # 🇦🇹 Barbara Paulus (second round)

• # Leila Meskhi (final)

• # 🇮🇹 Raffaella Reggi (quarterfinals)

• # Claudia Porwik (quarterfinals)

• # 🇺🇸 Susan Sloane (quarterfinals)

• # 🇺🇸 Patty Fendick (second round)