Big Brother 13 (UK)

Big Brother 2012, also known as Big Brother 13, was the thirteenth series of the British reality television series Big Brother UK, and the second series to broadcast on Channel 5. The series premiered with a live launch on 5 June 2012 and ran for 70 days, concluding on 13 August 2012. The series was originally planned to run for thirteen weeks, but was cut back to ten weeks in order to accommodate Celebrity Big Brother 10.

The series was announced in April 2011 when Channel 5 signed a two-year contract to air the show. With Big Brother 12 (UK) having been broadcast in autumn 2011, this is the first series to air in the show's regular summer period on Channel 5 since it acquired the show from Channel 4 in 2011.

The winner of this season was TBA.

This series was preceded by series twelve and followed by series fourteen.