2013 Open de Rennes – Singles

Kenny de Schepper was the defending champion, but lost to Nicolas Mahut in the final 6–3, 7–6(7–3).

Seeds
• # 🇫🇷 Kenny de Schepper (final)

• # 🇫🇷 Nicolas Mahut (champion)

• # 🇫🇷 Guillaume Rufin (first round)

• # Jesse Huta Galung (first round)

• # 🇨🇿 Jan Hájek (second round)

• # 🇫🇷 Marc Gicquel (semifinals)

• # 🇸🇰 Andrej Martin (quarterfinals)

• # 🇷🇴 Marius Copil (second round)