| Acronym | Definition |
|---|
| AEC➣Australian Electoral Commission |
| AEC➣Architecture, Engineering and Construction |
| AEC➣Atomic Energy Commission (superseded by ERDA) |
| AEC➣Atmos Energy Corporation (Kentucky) |
| AEC➣ARS Electronica Center |
| AEC➣Alliance Entertainment Corporation (various locations) |
| AEC➣Automotive Electronics Council (vehicle standards) |
| AEC➣Audiovox Electronics Corporation (VOXX International Corporation) |
| AEC➣Arancel Externo Común (Spanish: Common External Tariff; various locations) |
| AEC➣ASEAN Economic Community |
| AEC➣Agile Expert Certified (course) |
| AEC➣Association des États des Caraïbes (French: Association of Caribbean States) |
| AEC➣Advanced Energy Conversion (Schenectady, NY) |
| AEC➣Ambulatory Emergency Care |
| AEC➣Animal Emergency Clinic (various locations) |
| AEC➣America East Conference (sports league) |
| AEC➣Automatic Exposure Control |
| AEC➣Absolute Eosinophil Count (blood) |
| AEC➣Annual Education Conference (various organizations) |
| AEC➣Architecture Engineering and Construction |
| AEC➣Authorized Education Center |
| AEC➣Architecture Electronic Creation |
| AEC➣Arbitrary Execution Control |
| AEC➣Advanced Engine Components |
| AEC➣Acoustic Echo Cancellation |
| AEC➣Acknowledgment Expiration Counter |
| AEC➣Automotive Engineering Company |
| AEC➣Advanced Event Correlation |
| AEC➣Address Enable Code |
| AEC➣Adaptive Error Compensation |
| AEC➣Army Environmental Center |
| AEC➣African Economic Community |
| AEC➣American Eventing Championships |
| AEC➣Atomic Energy Council (Taiwan) |
| AEC➣Attestation of College Studies (degree; Canada) |
| AEC➣Alabama Environmental Council (Birmingham, AL) |
| AEC➣Architectural Energy Corporation (Boulder, CO) |
| AEC➣American English Center (various locations) |
| AEC➣Army Environmental Command (US Army; formerly Army Environmental Center) |
| AEC➣Art Ensemble of Chicago |
| AEC➣Architect, Engineer and Construction (industry sector) |
| AEC➣Aluminum Extruders Council |
| AEC➣Account Expiration Control (Joomla) |
| AEC➣Applied Ergonomics Conference (annual conference) |
| AEC➣Architectural Engineering Consulting |
| AEC➣Association Executives Council |
| AEC➣Academic Enrichment Center (University of Delaware; Newark, DE) |
| AEC➣Aboriginal Education Centre (various locations) |
| AEC➣Association des Economistes Catholiques (French: Catholic Economists Association) |
| AEC➣Automatic Error Correction |
| AEC➣Assessment and Evaluation Commission (Sudan) |
| AEC➣Adult Education Committee (various organizations) |
| AEC➣Aquitaine Europe Communication (France) |
| AEC➣Alaskan Engineering Commission (1914-1923) |
| AEC➣Alberta Energy Company Ltd |
| AEC➣Army Evaluation Center (US Army; formerly EAC, Evaluation Analysis Center) |
| AEC➣Association Européenne de Coaching (French: European Coaching Association; EU) |
| AEC➣Acoustic Echo Control |
| AEC➣Advanced Electronics Company |
| AEC➣Archives of the Episcopal Church |
| AEC➣Atomic Energy Committee (Kazakhstan) |
| AEC➣All England Club |
| AEC➣Area of Environmental Concern |
| AEC➣Ankyloblepharon-Ectodermal Defects |
| AEC➣Address Element Correction (USPS) |
| AEC➣Asian Economic Community |
| AEC➣Association Executives Committee (various organizations) |
| AEC➣Acoustic Echo Canceler |
| AEC➣Auxiliary Emergency Comunications |
| AEC➣Accounting Education Center (American Institute of Certified Public Accountants) |
| AEC➣Alumni Executive Committee (various schools) |
| AEC➣Army Education Center |
| AEC➣Assemblée Européenne des Citoyens (French: Assembly of European Citizens) |
| AEC➣Alliant Energy Center (Madison, WI) |
| AEC➣Asahi Kasei Engineering Corporation (Japan) |
| AEC➣Association Européenne de Cyclosport (French: European Cyclosport Association) |
| AEC➣Arab Economic Council |
| AEC➣Alabama Electric Cooperative, Inc. (Andalusia, AL) |
| AEC➣Atelier d'Etudes Climatiques (French: Climate Studies Workshop) |
| AEC➣Association of Exhibition Contractors |
| AEC➣Asthma Education Centre (Canada) |
| AEC➣Annual Environmental Conference (various organizations) |
| AEC➣Australian Exhibitions and Conferences |
| AEC➣Avionics Engineering Center |
| AEC➣Adaptive Echo Cancellation |
| AEC➣Amino Ethyl-Carbazole |
| AEC➣Account Expiration Component (software) |
| AEC➣Advanced Error Correction (CDS) |
| AEC➣Association Européenne des Cheminots (French) |
| AEC➣Anglican Episcopal Church |
| AEC➣Associate Enforcement Counsels |
| AEC➣Automated Electronic Classroom |
| AEC➣Army Electronics Command |
| AEC➣Automatic Engine Control |
| AEC➣Association of Electric Cooperatives |
| AEC➣Associated Equipment Company, Ltd |
| AEC➣Alternative Energy Coalition |
| AEC➣Area Emergency Coordinator |
| AEC➣Acoustic Echo Controller |
| AEC➣Agency Emergency Coordinator |
| AEC➣Aeromedical Evacuation Crew (Air Force Instruction) |
| AEC➣Agency of Environmental Conservation |
| AEC➣Australian Environmental Council |
| AEC➣Automatic Exhaust Control |
| AEC➣Chief Aviation Electrician's Mate (Naval Rating) |
| AEC➣Acceptable Effluent Concentration |
| AEC➣Acoustic Echo Control Equipment |
| AEC➣Adult Earnings Change |
| AEC➣Agriculture Executive Council |
| AEC➣Assessment of Equipment Condition |
| AEC➣Analog Electronic Controls |
| AEC➣Arithmetic Element Controller |
| AEC➣Aegis Education Center |
| AEC➣Aft Equipment Compartment |
| AEC➣Aquatics Emergency Care (Award, Lifesaving Society of Canada) |
| AEC➣Anger Engineering Co. (Milwaukee, WI) |
| AEC➣Aerial Experimental Component |
| AEC➣Automatic Edge Control |
| AEC➣AFSCN Executive Council |
| AEC➣Allied Environmental Consultants Ltd (Hong Kong) |
| AEC➣Airborne Electronic Combat |
| AEC➣Area Equipment Compound |
| AEC➣Anno Emmanuelis Christi (Latin; epigraphy) |
| AEC➣Asociación Experimental Cafetalera (Experimental Coffee Association, Guatemala) |
| AEC➣Aviation Electronics Combat |
| AEC➣Alternate Equipment Custodian |
| AEC➣Anime Enthusiast Club |
| AEC➣Aide aux Enfants Cambodgiens (French: Help for Children in Cambodia) |
| AEC➣Agent-Environment Coordination |
| AEC➣Automatic Exciter Control |
| AEC➣Anglican Essentials Canada, Inc (Milton, ON, Canada) |
| AEC➣Atlas Educational Center |
| AEC➣Able Enrichment Centre (Winnipeg, Manitoba, Canada) |
| AEC➣Asian European Council (est. 1994) |
| AEC➣ARM (Atmospheric Radiation Measurement) Experiment Center (US Department of Energy) |
| AEC➣Advanced Environmental Corporation |
AEC - a former executive agency (from 1946 to 1974) that was responsible for research into atomic energy and its peacetime uses in the United States