Celebrity Big Brother 13 was the thirteenth series of the British reality television series Celebrity Big Brother. The series launched on 3 January 2014 on Channel 5 and was originally meant to end after 22 days on 24 January 2014. However, it was extended due to ratings success and instead ended after 27 days on 29 January 2014, making it the longest Channel 5 series of the show (at the time, since beaten by Celebrity Big Brother 15) and the joint-longest series, along with Celebrity Big Brother 7 in 2010. It is the sixth celebrity series and the ninth series of Big Brother overall to air on the channel. Emma Willis returned to host the series, whilst Rylan Clark returned to present spin-off show Big Brother's Bit on the Side along with Willis.
The series was won by comedian and presenter Jim Davidson, with rapper Dappy as runner-up.
Jasmine Waltz returned to the house for Celebrity Big Brother 19 as an All-Star, representing this series. She was third to be evicted.
The series was officially confirmed on 3 April 2012 when Channel 5 renewed the show until 2014.
The official new eye logo for the series was released on 27 November 2013. The centre of the eye has turned into one of the many cameras which are located around the house.
Emma Willis returned to present the main show for her second celebrity series, as well as selected episodes of Big Brother's Bit on the Side.Rylan Clark returned to present Bit on the Side, but his co-host and Big Brother's Bit on the Psych host AJ Odudu was dropped. Clark hosted Bit on the Psych alongside Iain Lee, who was previously a regular panellist on the show. Celebrity Big Brother 12 housemate and former Loose Women panellist Carol McGiffin is head panellist on the show.