Under One Roof may refer to:

In television:

  • Under One Roof (1985 TV series), an American teen sitcom previously titled Spencer
  • Under One Roof (1993 TV series), a Japanese series generally known under the title Hitotsu Yane no Shita
  • Under One Roof (Singaporean TV series), a 1995–2003 Singaporean sitcom
  • Under One Roof (1995 TV series), an American drama series
  • Under One Roof (2002 TV series), an American reality series
  • Under One Roof (2008 TV series), an American comedy series
  • Under One Roof (Big Love), an episode of the American TV series Big Love

In other media:

  • Under One Roof (album), a 1998 album by Hunters and Collectors
  • Under One Roof (film), a 2002 gay-themed romantic comedy-drama
  • Under One Roof, a 1946 documentary short film directed by Lewis Gilbert
  • Under One Roof, a 1917 novel by Mary Cholmondeley
  • Under One Roof, a 1976 song by The Rubettes