| Acronym | Definition |
|---|
| AES | Advanced Encryption Standard |
| AES | Audio Engineering Society |
| AES | Auger Electron Spectroscopy |
| AES | American Epilepsy Society (West Hartford, Connecticut) |
| AES | Agricultural Experiment Station |
| AES | Automated Export System (US Customs) |
| AES | Atomic Emission Spectroscopy |
| AES | Application Environment Specification |
| AES | American Eugenics Society |
| AES | Aerospace and Electronic Systems |
| AES | Advanced Encryption System |
| AES | Allocation d’Éducation Spéciale (French: special education allowance) |
| AES | Aeromedical Evacuation Squadron |
| AES | Atmospheric Environment Service |
| AES | Amateur Electronic Supply |
| AES | Atomic Emission Spectrometer |
| AES | Arbejdsmarkedets Erhvervssygdomssikring (Denmark) |
| AES | American Electrophoresis Society |
| AES | American Elasmobranch Society |
| AES | Auger Electron Spectrometry |
| AES | Alternativa Española (Spanish Political Party) |
| AES | Alternative Energy Systems |
| AES | Alternative Energy Solutions (Wichita, KS) |
| AES | Aerospace Electronic Systems |
| AES | Advanced Entertainment System (game system) |
| AES | Aquacultural Engineering Society |
| AES | Attachment Execution Service (Microsoft) |
| AES | American Embassy School |
| AES | Advances in Engineering Software |
| AES | Atomic Emission Spectrophotometry |
| AES | Aircraft Earth Station |
| AES | All-Electric Ship |
| AES | Abrasive Engineering Society |
| AES | Aeromedical Evacuation System |
| AES | Architectural & Engineering Services |
| AES | Advanced Enterprise Solutions (e-Business Solution Provider) |
| AES | Advanced Energy Systems, Inc (Medford, NY) |
| AES | Automatic Emulation Switching (Lexmark) |
| AES | American Equilibration Society |
| AES | Application Environment Service |
| AES | Arctic Environmental Strategy |
| AES | Automatic Emulation Switching |
| AES | Aerolíneas Centrales de Colombia (ICAO code) |
| AES | Airborne Emission Spectrometer |
| AES | Academic English Studies (Lewis & Clark College) |
| AES | Aalesund, Norway - Vigra (Airport Code) |
| AES | Ada Evaluation System |
| AES | Asynchronous Event Scheduler |
| AES | Apollo Extension System |
| AES | Advanced Electronic Support |
| AES | Asian Environmental Society |
| AES | Automatic Energy Selector (domestic RV refrigerator manual) |
| AES | Atlantis Energy Systems, Inc |
| AES | Airborne Earth Station |
| AES | Applied Educational Systems, Inc (Lititz, Pennsylvania) |
| AES | Atmospheric Exchange System |
| AES | American Eagle Systems |
| AES | American Elementary School |
| AES | Aviation Electronic Systems (Army Aviation PMO) |
| AES | Asian Engineering Society |
| AES | Automatic External Standardization |
| AES | Analysis and Evaluation Staff |
| AES | American Electroplating Society |
| AES | Army Enterprise Strategy |
| AES | Aircraft Engineering Squadron (US Navy) |
| AES | ADA Embedded Systems |
| AES | Aerospace and Electronics Society |
| AES | Ansbach Elementary School (US Army Garrison, Ansbach, Germany) |
| AES | Agricultural Environment and Structures (division of Department of Agriculture, Ireland) |
| AES | Analytical & Environmental Services Limited (UK) |
| AES | Aircrew Escape Systems |
| AES | Anthropometric EVA Suit |
| AES | Automated Expert System |
| AES | Automated Examination System |
| AES | Analog Event System |
| AES | American Educational Services Inc. |
| AES | Army Experimentation Site |
| AES | Aerospace Electrical Society |
| AES | Airdrop Equipment Support |
| AES | Atrial Extra Systole |
| AES | Air and Energy Staff (EPA) |
| AES | Albany Engineered Systems (Albany NY) |
| AES | Automatic Emergency Stop |
| AES | Application End Service (Aether Systems, Inc.) |
| AES | Automobile Engineering Society |
| AES | Army Education System |
| AES | Application Environment Support |
| AES | Air Equipment and Support |
| AES | Aircraft/Airplane Evacuation Simulation |
| AES | Automated Exemption Subsystem |
| AES | Acceptance Equipment System |
| AES | Aerospace Expeditionary Squadrons |
| AES | Aircraft Emissions Spectrometer |
| AES | Alternative Enterprise Scheme (Irish program to support new agri-business) |
| AES | Adelaide Eisteddfod Society (Adelaide, Australia) |
| AES | Acquisition Executive Service (US DoD) |
| AES | Airwing Embarkable Suite (Navy) |
| AES | Alternative Experience Supplement |
| AES | ATACCS Experimentation Site |
| AES | Audio Environment Simulator |
| AES | Active Emissions Subsystem |
| AES | Airways Engineering Society |
| AES | Advance Encryption Services |
| AES | Acrylonitrile-Ethylene/Propylene Rubber-Styrene Copolymer (resin) |
| AES | Advanced Edit System |
| AES | Access Channel Energy-Signal |
| AES | Applied Ecological Solutions, Inc (Lawrence, KS) |
| AES | Aesthetic Consulting Group (Mission, KS) |
| AES | Adult Ebook Shop |