1990 Geneva European Open – Singles

Manuela Maleeva-Fragnière was the defending champion, but lost in the second round to Sabine Hack.

Barbara Paulus won the title by defeating Helen Kelesi 2–6, 7–5, 7–6(7–3) in the final.

Seeds
• # Manuela Maleeva-Fragnière (second round)

• # 🇦🇹 Barbara Paulus (champion)

• # 🇨🇦 Helen Kelesi (final)

• # 🇦🇺 Hana Mandlíková (first round, retired)

• # Dianne Van Rensburg (second round)

• # (n/a)

• # Radka Zrubáková (first round)

• # 🇮🇹 Cathy Caverzasio (quarterfinals)