Oni

Oni may refer to:

• Oni, Georgia, a town in the Republic of Georgia
• Oni (folklore), the demons and ogres of Japanese beliefs
• Oni (king), ancient kings of Nigeria's Yoruba people
• Oni (video game), a 2001 third-person shooter video game made by Bungie Studios
• Oni Aliens, foes in the Gantz manga
• Oni Press, an independent comic book publisher
• Onimusha (series), a series of action video games made by Capcom
• Oni, a type of sandwich knife designed by the Australian Dreamfarm company
• 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 (Street Fighter), an alternate form of Akuma that appears in the Super Street Fighter IV: Arcade Edition video game

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

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