Celebrity Big Brother 12 was the twelfth series of the British reality television series Celebrity Big Brother. It launched on 22 August 2013, three days after the fourteenth regular series final, in two parts. The series ended after 23 days on 13 September 2013, with Charlotte Crosby being voted the winner of the series by the public. It continued to air on Channel 5 as part of a two-year contract with Endemol, which secured the show until 2014. It was the fifth celebrity series to air on Channel 5 and the eighth series of Big Brother to air on the broadcaster overall since they acquired the show.

Charlotte Letitia Crosby is an English television personality, known for appearing in the MTV reality series Geordie Shore and winning the twelfth series of Celebrity Big Brother. In 2017, she began presenting Just Tattoo of Us, and in 2018, Crosby began starring in her own reality series, The Charlotte Show.