AO

AO may refer to:

Science and technology

• .ao, top-level Internet domain code for Angola
• Adaptive optics, an astronomical imaging technology
• Arctic oscillation, a climate pattern
• The AMSAT-OSCAR satellite naming convention
• Ambient occlusion, a rendering pass on high quality animation and modelling renders

Media and entertainment

• AO Music, an indie record label
• Aomusic, a worldbeat musical group, often referred to as AO
• AO Recordings, a record label
• Lord Ao, a fictional deity in the Dungeons & Dragons universe
• Adults Only, an entertainment rating

Government and politics

• Administrative Office of the United States Courts
• Arbeitsgemeinschaft für Osteosynthesefragen, a nonprofit organization dedicated to musculoskeletal injuries
• NSDAP/AO, Foreign Organization branch of the Nazi Party
• Officer of the Order of Australia, postnominal AO

Other uses

• Ao (color)
• Ao (mythology), a deity in Māori mythology
• Ao (turtle), a creature in Chinese mythology
• Ao Naga, an Indian ethnic group
• Ao languages
• Aaron Owens (born 1976), American streetball player
• Area of operations, a U.S. military term
• Autonomous oblast or autonomous okrug, types of administrative divisions
• Angola, ISO code and NATO country code AO
• Australian Airlines, IATA code AO
• Ao, an ancient Polynesian word for light or daytime
• Ao, a type of Easter Island wood carving
• AO, a U.S. Navy hull classification symbol
• AO-, the prefix for several firearms
• Aktsionernoye obschestvo, a Russian corporate entity similar to a joint-stock company
• Aviation Ordnanceman, a United States Navy occupational rating

See also

• A0 (disambiguation) (A-zero)
• Alpha and Omega (disambiguation)
• Todd-AO