Oni (disambiguation)

Oni (鬼) are demons or ghouls (ghosts) of Japanese folklore.

Oni may also refer to:

• Oni, India, a small village in Western India
• Oni, Georgia, a town in the Republic of Georgia
• Oni (series), a series of RPG video games
• Oni (video game), a 2001 third-person shooter video game made by Bungie Studios
• Oni Press, an independent comic book publisher
• Onimusha (series), a series of action video games made by Capcom
• Oni Aliens, foes in the Gantz manga
• Oni the title of a linked video game and film project based on an unfinished Akira Kurosawa script, that was later renamed Ni-Oh
• Oni, a race of aliens from the manga and anime Urusei Yatsura
• Oni, the kanji representing the Challenge difficulty level in the game Dance Dance Revolution
• Oni or ooni, ancient kings of Nigeria's Yoruba people
• Oni, an alternate form of Akuma that appears in the Super Street Fighter IV: Arcade Edition video game
• Oni, an antagonist character on the Mortal Kombat: Shaolin Monks video game.
• ONI, a progressive metal band currently signed to Metal Blade Records

ONI may refer to:

• Office of Naval Intelligence, the United States Navy's intelligence agency
• National Olympiad of Informatics (Olimpiada Naţională de Informatică), the most important Romanian informatics competition
• OpenNet Initiative, a project for tracking the use of internet filtering and surveillance
• ONI Systems Corporation, an optical networking company acquired by Ciena Corporation in 2002