2018 Montreux Ladies Open – Singles

María Teresa Torró Flor was the defending champion, but chose not to participate.

Iga Świątek won the title, defeating Kimberley Zimmermann in the final, 6–2, 6–2.

Seeds
• # 🇨🇴 Mariana Duque Mariño (semifinals)

• # Conny Perrin (second round)

• # 🇮🇹 Martina Trevisan (second round)

• # 🇩🇪 Tamara Korpatsch (second round)

• # Bibiane Schoofs (second round)

• # 🇮🇹 Deborah Chiesa (first round)

• # 🇺🇦 Katarina Zavatska (first round)

• # 🇹🇷 Çağla Büyükakçay (first round)