2018 Nürnberger Versicherungscup – Singles

Kiki Bertens was the two-time defending champion, but lost in the quarterfinals to Kirsten Flipkens.

Johanna Larsson won her second WTA title, defeating Alison Riske in the final, 7–6(7–4), 6–4.

Seeds
• # 🇺🇸 Sloane Stephens (first round)

• # 🇩🇪 Julia Görges (first round)

• # Kiki Bertens (quarterfinals)

• # 🇨🇳 Zhang Shuai (first round)

• # 🇷🇴 Irina-Camelia Begu (first round, retired)

• # 🇷🇴 Sorana Cîrstea (quarterfinals, retired)

• # 🇧🇪 Alison Van Uytvanck (first round)

• # 🇨🇿 Kateřina Siniaková (semifinals)

Seeds
• # 🇨🇿 Denisa Allertová (first round)

• # Lesley Kerkhove (first round)

• # 🇹🇷 İpek Soylu (first round)

• # 🇭🇺 Fanny Stollár (qualified)

• # 🇨🇿 Tereza Smitková (qualifying competition)

• # 🇸🇰 Michaela Hončová (first round)

• # 🇸🇰 Chantal Škamlová (first round)

• # 🇺🇦 Olga Ianchuk (qualifying competition)

• # 🇩🇪 Anna Zaja (qualified)

• # 🇷🇸 Dejana Radanović (qualified)

• # 🇸🇰 Kristína Kučová (qualified)

• # Chanel Simmonds (first round)

Qualifiers
• # 🇱🇺 Mandy Minella

• # 🇩🇪 Anna Zaja

• # 🇷🇸 Dejana Radanović

• # 🇭🇺 Fanny Stollár

• # 🇦🇷 Nadia Podoroska

• # 🇸🇰 Kristína Kučová