Big Brother 12 is the twelfth season of various versions of Big Brother and may refer to:
Big Brother 12 (U.S.), the 2010 edition of the U.S. version Gran Hermano 12 (Spain), the 2010 edition of the Spanish version Big Brother 12 (UK), the 2011 edition of the UK version Grande Fratello (season 12), the 2011-2012 edition of Big Brother in Italy Big Brother Brasil 12, the 2012 edition of the Brazil version Big Brother (Australian season 12) the 2020 reboot of the Australian version Bigg Boss 12 (disambiguation) Bigg Boss 12, twelfth season of Big Brother in India in Hindi
See also Big Brother (franchise) Big Brother (disambiguation)