See main article: 2011 BMW Open. Mikhail Youzhny was the defending champion, but lost to Philipp Petzschner in the second round.
7th seed Nikolay Davydenko defeated 5th seed Florian Mayer in the final 6–3, 3–6, 6–1 to win the title. It was Davydenko's first title since January 2010, and his 21st career title.
See main article: 2011 BMW Open – Singles qualifying.