A big brother is a brother senior in birth order.
Big Brother may also refer to:
Big Brother (Nineteen Eighty-Four), a character from George Orwell's novel Nineteen Eighty-Four
Big Brother (franchise), reality competition television program franchise.
Literature
Big Brother (magazine), a skateboarding culture magazine
Big Brother: A Novel, by Lionel Shriver, 2013
Music
"Big Brother" (David Bowie song), 1973
"Big Brother" (Kanye West song), 2007
Big Brother and the Holding Company, an American band
Big Brother & the Holding Company (album), 1967
Big Brother Recordings, a British record label
"Big Brother", a 2004 song by Girls Aloud from What Will the Neighbours Say?
"Big Brother", a 2006 song by Morten Abel
"Big Brother", a 1999 song by Reset from No Limits
"Big Brother", a 1972 song by Stevie Wonder from Talking Book
"Big Brother", a 2004 song by Susumu Hirasawa, as Kaku P-Model from Vistoron
Film
Big Brother (1923 film), a lost American silent drama
Big Brother (2007 film), an Indian Hindi vigilante action film
Big Brother (2015 film), a Bangladeshi action romance
Big Brother (2018 film), a Hong Kong action drama
Big Brother (2020 film), an Indian Malayalam-language action thriller
The Big Brother, a 1982 French crime drama film
Television
Reality television
Big Brother (franchise)
Big Brother (American TV series)
Big Brother (Australian TV series)
Big Brother (Belgian TV series)
Big Brother (British TV series)
Big Brother (Bulgarian TV series)
Big Brother (Croatian TV series)
Big Brother (Czech TV series)
Big Brother (Danish TV series)
Big Brother (Dutch TV series)
Big Brother (Dutch and Belgian TV series)
Big Brother (Finnish TV series)
Big Brother (German TV series)
Big Brother (Greek TV series)
Big Brother (Indonesian TV series)
Big Brother (Israeli TV series)
Big Brother (Norwegian TV series)
Big Brother (Norwegian and Swedish TV series)
Big Brother (Polish TV series)
Big Brother (Portuguese TV series)
Big Brother (Quebec TV series)
Big Brother (Romanian TV series)
Big Brother (Russian TV series)
Big Brother (Serbian TV series)
Big Brother (Slovak TV series)
Big Brother (Slovenian TV series)
Big Brother (South African TV series)
Big Brother (Swedish TV series)
Big Brother (Swiss TV series)
Big Brother (Ukrainian TV series)
Big Brother Africa
Big Brother Albania
Big Brother Angola