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