AOO may refer to:
A horn is a sound-making device that can be equipped to motor vehicles, buses, bicycles, trains, trams (a.k.a.
The Aoös or Vjosë (Greek: Αώος; Albanian: Vjosë, Vjosa; Aromanian: Băiasa) is a river in northwestern Greece and southwestern Albania.
Altoona–Blair County Airport (IATA: AOO, ICAO: KAOO, FAA LID: AOO) is a county owned, public airport in Martinsburg, Pennsylvania, 14 miles south of Altoona, in Blair County, Pennsylvania.
The Vedeneyev M14P is a Russian nine-cylinder, four-stroke, air-cooled, petrol-powered radial engine. Producing 360 hp (268 kW), its design dates from the 1940s (Kotelnikov 2005), and is itself a development of the Ivchenko AI-14 engine.
Tweety's High-Flying Adventure is a 2000 direct-to-video musical comedy animated film produced by Tom Minton and James T.
Ao Oni (青鬼, lit. 'Blue Demon') is a freeware role-playing horror video game. The game features puzzle and RPG elements, and revolves around a boy named Hiroshi, who is trapped with his friends in a haunted mansion, and is stalked by a monster.
Ao Oni (青鬼) is a 2014 Japanese horror film based on the game of the same name. It was released on July 5, 2014 in Japan.
AOL Inc. (simply known as AOL, originally known as America Online) is an American multinational mass media corporation based in New York, a subsidiary of Verizon Communications.
Aortic dissection occurs when a tear in the inside of the aorta causes blood to flow between the layers of the wall of the aorta, forcing the layers apart.