The fourth Wowereit senate was the state government of Berlin between 2011 and 2014, sworn in on 24 November 2011 after Klaus Wowereit was elected as Governing Mayor by the members of the Abgeordnetenhaus of Berlin.

The election took place on 18 September 2011, and resulted in losses for both governing parties.

The opposition CDU and Greens improved, and the Pirate Party debuted at 9%.

As a result of their losses, the SPD and The Left fell short of a majority, bringing the coalition to an end.

[2] Wowereit was re-elected as Governing Mayor by the Abgeordnetenhaus on 24 November, winning 84 votes out of 148 cast.