Celebrity Big Brother 1 may refer to:
- Celebrity Big Brother 1 (UK), the 2001 first UK series of Celebrity Big Brother
- Celebrity Big Brother 1 (U.S.), the upcoming 2018 first U.S. season of Celebrity Big Brother
- Bigg Boss (season 1), the 2006-2007 first season of Bigg Boss, the Indian version of Big Brother
- Celebrity Big Brother Australia, the 2002 celebrity edition of Big Brother Australia
- Celebrity Big Brother (Croatia), the 2008 Croatian series of Celebrity Big Brother
- HaAh HaGadol VIP, the 2009 first VIP edition of HaAh HaGadol, the Israeli version of Big Brother
- Pinoy Big Brother: Celebrity Edition, the 2006 first celebrity season of Big Brother in the Philippines
- Veliki brat VIP 1, the 2007 first celebrity season of Veliki brat, the version of Big Brother in Serbia, Bosnia and Herzegovina, Montenegro
Celebrity Big Brother 2 may refer to:
- Celebrity Big Brother 2 (UK), the 2002 second UK series of Celebrity Big Brother
- Bigg Boss (season 2), the 2008 second season of Bigg Boss, the Indian version of Big Brother
- HaAh HaGadol VIP 2, the 2015 second VIP edition of HaAh HaGadol, the Israeli version of Big Brother
- Pinoy Big Brother: Celebrity Edition 2, the 2007-2008 second celebrity season of Big Brother in the Philippines
- Veliki brat VIP 2, the 2008 second celebrity season of Veliki brat, the version of Big Brother in Serbia, Bosnia and Herzegovina, Montenegro
Celebrity Big Brother 3 may refer to:
- Celebrity Big Brother 3 (UK), the 2005 third UK series of Celebrity Big Brother
- Bigg Boss (season 3), the 2009 third season of Bigg Boss, the Indian version of Big Brother
- Veliki brat VIP All Stars, the 2009 third celebrity season of Veliki brat, the version of Big Brother in Serbia, Bosnia and Herzegovina, Montenegro
Celebrity Big Brother 4 may refer to:
- Celebrity Big Brother 4 (UK), the 2006 fourth UK series of Celebrity Big Brother
- Bigg Boss (season 4), the 2010-2011 fourth season of Bigg Boss, the Indian version of Big Brother
- Veliki brat VIP 4, the 2010 fourth celebrity season of Veliki brat, the version of Big Brother in Serbia, Bosnia and Herzegovina, Montenegro
Celebrity Big Brother 5 may refer to:
- Celebrity Big Brother 5 (UK), the 2007 fifth UK series of Celebrity Big Brother
- Bigg Boss (season 5), the 2011-2012 fifth season of Bigg Boss, the Indian version of Big Brother
- Veliki brat VIP 5, the 2013 fifth celebrity season of Veliki brat, the version of Big Brother in Serbia, Bosnia and Herzegovina, Montenegro