2018 Internationaux de Strasbourg – Singles

Samantha Stosur was the defending champion but lost in the quarterfinals to Dominika Cibulková.

Anastasia Pavlyuchenkova won the title, defeating Cibulková in the final, 6–7(5–7), 7–6(7–3), 7–6(8–6). Pavlyuchenkova won the title after saving two match points Cibulková had in the final against her.

Seeds
• # 🇦🇺 Ashleigh Barty (semifinals, retired)

• # 🇦🇺 Daria Gavrilova (second round)

• # 🇷🇺 Anastasia Pavlyuchenkova (champion)

• # 🇷🇴 Mihaela Buzărnescu (semifinals)

• # 🇸🇰 Dominika Cibulková (final)

• # 🇭🇺 Tímea Babos (second round)

• # 🇺🇸 Danielle Collins (second round)

• # Hsieh Su-wei (quarterfinals)

Seeds
• # 🇪🇪 Kaia Kanepi (qualified)

• # 🇹🇭 Luksika Kumkhum (qualifying competition, lucky loser)

• # 🇪🇸 Sílvia Soler Espinosa (first round)

• # 🇫🇷 Myrtille Georges (first round)

• # 🇮🇹 Jessica Pieri (qualifying competition, retired)

• # Tereza Mrdeža (qualified)

• # 🇷🇺 Elena Rybakina (qualifying competition, lucky loser)

• # 🇷🇴 Jaqueline Cristian (qualifying competition)

• # 🇺🇸 Victoria Duval (qualifying competition)

• # 🇫🇷 Chloé Paquet (qualified)

• # 🇺🇦 Ganna Poznikhirenko (qualifying competition)

• # 🇮🇹 Camilla Rosatello (qualified)

Qualifiers
• # 🇪🇪 Kaia Kanepi

• # 🇮🇹 Camilla Rosatello

• # 🇷🇺 Marina Melnikova

• # 🇵🇱 Katarzyna Piter

• # 🇫🇷 Chloé Paquet

• # Tereza Mrdeža

Lucky losers
• # 🇹🇭 Luksika Kumkhum

• # 🇷🇺 Elena Rybakina