The Czech Social Democratic Party (ČSSD) leadership election of 2011 happened as a result of 2010 Czech legislative election which led to the resignation of incumbent leader Jiří Paroubek. The leadership election was considered a duel between Bohuslav Sobotka and Michal Hašek who were main candidates. They were both endorsed by 7 Regional organisations of party. Other candidates included . 609 Delegates were allowed to vote in the election but only 593.[1]
Bohuslav Sobotka won in second round when he received 304 votes while Hašek received 258. Sobotka became the leader of ČSSD. Hašek then became the Vice Chairman of the party.[2][3]