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.