| Acronym | Definition |
|---|
| AOA | American Osteopathic Association |
| AoA | Administration on Aging (US Department of Health and Human Services) |
| AOA | American Optometric Association |
| AOA | Angolan Kwanza (ISO currency code) |
| AOA | Angle Of Attack |
| AOA | Alpha Omega Alpha (Medical Honor Society) |
| AOA | Analysis of Alternatives (formerly COEA) |
| AOA | Angle Of Arrival |
| AOA | Australian Olive Association |
| AOA | American Obesity Association |
| AOA | American Orthopaedic Association |
| AOA | Airport Operators Association (UK) |
| AOA | Age of Apocalypse (Marvel comics) |
| AOA | Award of Arms (Society for Creative Anachronism) |
| AOA | At or Above |
| AOA | Australian Orthopaedic Association |
| AOA | Activity on Arrow (project management) |
| AOA | Abort Once Around |
| AOA | Airport Operations Area (aviation) |
| AOA | Australian Osteopathic Association |
| AOA | Assalam-O-Alaikum |
| AOA | Activity on Arc (project management) |
| AOA | Adaptive Optics Associates |
| AOA | Add on Armor (Army) |
| AOA | American Orthopsychiatric Association |
| AOA | American Ostrich Association |
| AOA | Academy of Art |
| AOA | Amphibious Objective Area |
| AOA | Airborne Optical Adjunct |
| AOA | Association of Otolaryngology Administrators |
| AOA | ACARS over AVLC (aviation data systems) |
| AOA | American Optometry Association |
| AOA | Aircraft Operations Area (FAA) |
| AOA | Audi of America |
| AOA | Asia-Oceania-Africa (region) |
| AOA | Axial Offset Anomaly |
| AOA | Annual Operating Agreement |
| AOA | Asslam-O-Alaikum (Islamic greeting) |
| AOA | Any One Accident (public liability insurance) |
| AOA | Australian Ostrich Association |
| AOA | Ataxia-Oculomotor Apraxia Syndrome |
| AoA | Apple of Archer (gaming, Ragnarok Online) |
| AOA | Art of Astonishment (magic book) |
| AOA | American Outlaws Association (motorcycle club) |
| AOA | Add-On Architecture |
| AOA | Assist Other Agency |
| AOA | Amphibious Operating Area |
| AOA | Area of Action (US DoD) |
| AOA | American Ordnance Association |
| AOA | Amphibious Operations Area |
| AOA | Area Operating Agreement |
| AOA | Anarchists Of America |
| AOA | Abbreviated Operational Assessment |
| AOA | Assembly Operations Assessment |
| AOA | Area Originating Authority |
| AOA | Annual Operating Area |
| AOA | Antiochian Orthodox Archdiocese of America |
| AOA | Aqueduct Overlay Arch |
| AOA | Advise of Obligation Authority |
| AOA | Amplifier Operating Attributes (Ciena) |
| AOA | Area Office Augmentee |