2013 Open BNP Paribas Banque de Bretagne – Singles

Igor Sijsling was the defending champion but decided to compete in the 2013 ABN AMRO World Tennis Tournament instead. Marius Copil defeated Marc Gicquel 7–6(11–9), 6–4 in the final to win the title.

Seeds
• # 🇪🇸 Roberto Bautista Agut (quarterfinals)

• # 🇱🇺 Gilles Müller (second round)

• # 🇧🇪 Steve Darcis (semifinals)

• # 🇫🇷 Édouard Roger-Vasselin (quarterfinals)

• # 🇮🇱 Dudi Sela (semifinals)

• # 🇫🇷 Kenny de Schepper (quarterfinals)

• # 🇩🇪 Jan-Lennard Struff (first round)

• # 🇫🇷 Marc Gicquel (final)