2011 Strabag Prague Open – Men's singles

The men's singles of the 2011 Strabag Prague Open tournament was played on clay in Prague, Czech Republic.

The 2011 Strabag Prague Open Open was a men's tennis tournament played on clay in Prague, Czech Republic.

Jan Hernych was the last edition's champion, but lost to Alexander Bury in the qualifying tournament. Lukáš Rosol defeated Alex Bogomolov Jr. in the final 7–6(1), 5–2 before Bogomolov retired.

Seeds
• # 🇫🇷 Jérémy Chardy (second round)

• # 🇧🇬 Grigor Dimitrov (second round)

• # 🇫🇷 Julien Benneteau (quarterfinals)

• # 🇩🇪 Matthias Bachinger (second round)

• # 🇨🇿 Jan Hájek (quarterfinals, withdrew)

• # 🇫🇷 Florent Serra (second round)

• # Rui Machado (second round)

• # 🇺🇸 Alex Bogomolov Jr. (final, retired)