| Acronym | Definition |
|---|
| AIA➣American Institute of Architects (Washington, DC; business support; est. 1857) |
| AIA➣Archaeological Institute of America |
| AIA➣Aerospace Industries Association |
| AIA➣Athletes In Action (Ministry of Campus Crusade for Christ International) |
| AIA➣Anguilla (ISO Country code) |
| AIA➣Applications Integration Architecture |
| AIA➣American Insurance Association |
| AIA➣American International Assurance (Hong Kong) |
| AIA➣Automotive Industries Association |
| AIA➣Arizona Interscholastic Association |
| AIA➣Annual Investment Allowance (UK) |
| AIA➣Asians in America |
| AIA➣Athens International Airport |
| AIA➣Acts Interpretation Act (Australia) |
| AIA➣Authority Information Access (digital certificates) |
| AIA➣Antigen Induced Arthritis |
| AIA➣Advance Informed Agreement (Convention on Biological Diversity) |
| AIA➣Air Intelligence Agency |
| AIA➣Alternatives in Action (California) |
| AIA➣Automated Imaging Association |
| AIA➣Leahy-Smith America Invents Act of 2011 (patent reform law) |
| AIA➣Authority Information Access |
| AIA➣Automatic Image Annotation (computer algorithm) |
| AIA➣Associazione Italiana Arbitri (Italian Soccer Referee Association) |
| AIA➣Anchorage International Airport |
| AIA➣ASEAN Investment Area |
| AIA➣Accuracy in Academia |
| AIA➣Accessibility Interoperability Alliance (Wakefield, MA) |
| AIA➣Adventures in Attitudes (Corexcel program) |
| AIA➣Adventures in Advertising |
| AIA➣Alliance Insurance Agency (various locations) |
| AIA➣American Insurance Administrators (various locations) |
| AIA➣Appropriations in Aid (Kenya) |
| AIA➣Apiary Inspectors of America |
| AIA➣Albo Imprese Artigiane (Italian: Craft Register of Companies) |
| AIA➣Atelier Industriel de l'Aéronautique (French: Aeronautics Industrial Workshop) |
| AIA➣Art Institute of Atlanta |
| AIA➣Association for Industrial Archaeology (UK) |
| AIA➣Access to Information Act (Canada) |
| AIA➣Association Internationale Antimilitariste (Dutch pacifist association) |
| AIA➣Association of Indians in America |
| AIA➣Asarums Industri AB (Swedish technology company) |
| AIA➣American Infertility Association |
| AIA➣Anti-Insulin Antibody |
| AIA➣Atmospheric Imaging Assembly |
| AIA➣Anti-Idiotypic Antibody |
| AIA➣Afghan Interim Administration |
| AIA➣Asphalt Industry Alliance (Mineral Products Association and Refined Bitumen Association; UK) |
| AIA➣Apologies In Advance |
| AIA➣Autonomous Intelligent Agent (artificial intelligence) |
| AIA➣Aspirin Intolerant Asthma |
| AIA➣Asbestos Information Association |
| AIA➣Authorized Inspection Agency |
| AIA➣Aichi International Association (Japan) |
| AIA➣Architectes Ingénieurs Associés (French architecture and engineering firm) |
| AIA➣Alliance, NE, USA (Airport Code) |
| AIA➣Automated Image Analysis |
| AIA➣Animal Interest Alliance (South Africa) |
| AIA➣African Investment Advisory (South Africa and UK) |
| AIA➣Achieve in Africa, Inc. (Thousand Oaks, CA) |
| AIA➣Alliance of Iranian Americans (California) |
| AIA➣American Importers Association |
| AIA➣AI Aardvark (Microsoft Flight Simulator) |
| AIA➣American Iatrogenic Association |
| AIA➣Artists International Association |
| AIA➣Army Intelligence Agency |
| AIA➣Association d'Improvisation Antiboise (French theater improvisation association) |
| AIA➣Active Integrated Antenna |
| AIA➣Associate of the Institute of Actuaries (UK) |
| AIA➣Agudath Israel of America |
| AIA➣Appreciative Inquiry Approach |
| AIA➣Atlantic Institute of Aromatherapy |
| AIA➣Artificial Intelligence Application |
| AIA➣Association for Investor Awareness |
| AIA➣American International Association for Economic and Social Development |
| AIA➣Academic Imaging Associates (digital imaging; Manchester Center, VT) |
| AIA➣Association of Instructional Administrators |
| AIA➣Army International Activities |
| AIA➣Aluminum Interlocked Armor (cable sheath) |
| AIA➣Aestheticians International Association |
| AIA➣Australasian Incentive Association |
| AIA➣Accommodation Independence Assessment |
| AIA➣Association of Insolvency Accountants |
| AIA➣Association des Internationaux d'Aviron (French: International Association of Rowing) |
| AIA➣Abbotsford International Airport |
| AIA➣Army Information Architecture |
| AIA➣Alternate Interior Angle (geometry) |
| AIA➣Audio Indicate Active |
| AIA➣Appreciated in Advance |
| AIA➣Association des Industries de l'Alarme (French: Alarm Industries Association; Belgium) |
| AIA➣Adult Image Archive |
| AIA➣Asian International Association |
| AIA➣Association for Investor Assistance |
| AIA➣American Inventors Association |
| AIA➣Association of Industrial Advertisers |
| AIA➣Aeronautical Industry Association |
| AIA➣Arrowroot Industry Association |
| AIA➣Assurance Individuelle Accidents (French: Individual Accident Insurance) |
| AIA➣Association of Insurance Advertisers |
| AIA➣Activity Interrupt Acknowledgement (ITU-T) |
| AIA➣Azimuth Indicator Assembly |
| AIA➣Académie Internationale d'Architecture (French: International Academy of Architecture) |
| AIA➣Asnières Industries Adaptées (French disability accommodation group) |
| AIA➣Argon Inlet Assembly (reactor vessel preheating) |
| AIA➣Active Interface Adapters |
| AIA➣Automation Interoperability Appraisal |
| AIA➣Association Internationale des Arganophiles (French: International Association of Arganophiles; tree enthusiast group) |
| AIA➣Automatic Incident Actuation |
| AIA➣Áreas Importante para Aves (Spanish: Important Bird Areas; bird conservation; various locations) |
| AIA➣Annual-in-Advance (payment method) |