are ogres or demons in Japanese folklore.
Oni may also refer to: Oni (band), a Canadian progressive metal band Oni Press, an independent comic book publisher Ooni, the kings of Nigeria's Yoruba people Oni–Adil, Indian composer duo Miye Oni (born 1997), American basketball player Oni Gozen, a Japanese female warrior from the 16th century Oni, Maharashtra, a small village in Western India Oni, Georgia, a town in Georgia Oni (letter), the 16th letter of the three Georgian scripts Oni: Thunder God's Tale, stop-motion series Oni (video game), a 2001 third-person action video game made by Bungie Adesuwa Oni (born 1989), British actress Onimusha, a series of action video games made by Capcom Oni Aliens, foes in the Gantz manga Oni, the title of an unfinished Akira Kurosawa script that was later adapted to a video game named Nioh Oni, a race of aliens from the manga and anime Urusei Yatsura The Oni, a primary antagonist in seasons 8-10 of the TV series Ninjago Oni (Street Fighter), an alternate form of Akuma that appears in the Super Street Fighter IV: Arcade Edition video game Oni, an antagonist in the Mortal Kombat: Shaolin Monks video game My Oni Girl, a 2024 anime film by Studio Colorido
ONI may refer to: Office of Naval Intelligence, the United States Navy's intelligence agency Office of National Intelligence, an Australian government intelligence agency 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 ONI (Oxford Nanoimaging), a super-resolution microscope company Oxygen Not Included, a simulation video game by Klei Entertainment OASIS Neural Interface, a VR technology system used in Ready Player Two Oceanic Niño Index, the numerical metric for El Niño used by the U. S government's NOAA