See main article: 2011 Open 13. Michaël Llodra was the defending champion, but he lost in quarterfinals to Robin Söderling. Söderling reached the final, where he defeated Marin Čilić 6–7(8–10), 6–3, 6–3 to claim his third title of the year and ninth of his career.
The top four seeds received a bye into the second round.
See main article: 2011 Open 13 – Singles Qualifying.