Black Gate or Blackgate may refer to:
Fictional Blackgate Penitentiary, a fictional prison in the DC Comics universe Ultima VII: The Black Gate, Part I of the computer game Ultima VII Black Gate or Morannon in J. R. R. Tolkien's Middle-earth, an entrance to Mordor Batman: Arkham Origins Blackgate, a 2013 video game Black Gate (manga), a Japanese manga written and illustrated by Yukiko Sumiyoshi The Black Gate, a 1919 American silent film produced by Vitagraph and starring Ruth Clifford
Other uses The Black Gate (The Castle, Newcastle), a building at the archeological site The Castle, Newcastle upon Tyne, England Black Gate (capacitor), a brand of capacitor Black Gate (magazine), a fantasy and science fiction magazine
See also Porta Nigra (Latin for black gate), a large Roman city gate in Trier, Germany Kuromon (Japanese for black gate), in Tokyo, Japan