2013 Open GDF Suez Nantes Atlantique – Singles

Monica Niculescu was the defending champion, having won the event in 2012, but withdrew before the event started.

Aliaksandra Sasnovich won the tournament, defeating Magda Linette in the final, 4–6, 6–4, 6–2.

Seeds
• # 🇷🇴 Monica Niculescu (withdrew)

• # 🇮🇹 Camila Giorgi (withdrew)

• # 🇰🇿 Yulia Putintseva (first round)

• # 🇪🇸 Lara Arruabarrena (quarterfinals)

• # 🇺🇦 Nadiya Kichenok (semifinals)

• # 🇫🇷 Claire Feuerstein (semifinals)

• # 🇰🇿 Sesil Karatantcheva (first round)

• # 🇸🇪 Sofia Arvidsson (first round)

• # 🇫🇷 Stéphanie Foretz Gacon (quarterfinals)

• # 🇷🇴 Alexandra Dulgheru (first round)