From Wikipedia, the free encyclopedia
AAO may refer to:
- Acer Aspire One, a subcompact notebook computer
- Aktionsanalytische Organisation, an Austrian/German commune
- American Academy of Ophthalmology
- American Academy of Optometry
- American Academy of Osteopathy
- American Association of Orthodontists
- America's Army: Operations, a computer game
- Andrushivka Astronomical Observatory
- Antarctic oscillation
- IATA airport code for Anaco Airport in Anaco, Venezuela
- ICAO designator for Colonel James Jabara Airport in Wichita, Kansas, United States
- Australian Astronomical Observatory, an observatory in Australia, formerly known as the Anglo-Australian Observatory
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