See main article: 2011 Aircel Chennai Open. Marin Čilić was the two-time defending champion, but lost in the first round to Kei Nishikori.3rd seed Stanislas Wawrinka defeated 7th seed Xavier Malisse 7–5, 4–6, 6–1 in the final match.
See main article: 2011 Aircel Chennai Open – Singles qualifying.