| Acronym | Definition |
|---|
| AEM | Association of Equipment Manufacturers |
| AEM | Advanced Engine Management |
| AEM | Applied and Environmental Microbiology (journal) |
| AEM | Agnico-Eagle Mines Limited |
| AEM | Academic Emergency Medicine (journal) |
| AEM | Azienda Energetica Municipale (Milano, Italy) |
| AEM | Akademie für Ethik in der Medizin (German) |
| AEM | Airborne Electromagnetic |
| AEM | Aerospace Engineering and Mechanics |
| AEM | Analytical Electron Microscopy |
| AEM | Annals of Emergency Medicine |
| AEM | Amis des Enfants du Monde (French: Friends of the Children of the World; est. 1975) |
| AEM | Azienda Energetica Metropolitana (Torino, Italy) |
| AEM | Anion-Exchange Membrane (fuel cell technology) |
| AEM | Asia Europe Meeting |
| AEM | Automated Electrified Monorail |
| AEM | Animal Enclosure Module |
| AEM | Acoustic Emission Monitoring |
| AEM | Asociación de Estudiantes de Medicina (Association of Medical Students, Guatemala) |
| AEM | Automatic Emulation Management |
| AEM | Art Educators of Minnesota (Prior Lake, MN) |
| AEM | Auger Electron Microscopy |
| AEM | Associate Emergency Manager |
| AEM | Arsenal Exchange Model |
| AEM | Accident & Emergency Medicine (UK) |
| AEM | Ambulatory Electrocardiographic Monitoring |
| AEM | Assembly Evaluation Method |
| AEM | Applications Explorer Missions (satellite) |
| AEM | Area Emergency Manager |
| AEM | Agroforestry Estate Model |
| AEM | Aerospace Engineering and Maintenance |
| AEM | Advertising Expenditure Measurement |
| AEM | Application Evaluation Matrix |
| AEM | Architect-Engineer-Management (type of contract) |
| AEM | Adaptive Energy Management |
| AEM | Alternative Examination Method |
| AEM | Antenna Element Manager |
| AEM | Aircraft Engine Mechanic |
| AEM | Ancillary Equipment Module |
| AEM | Analog Electronics Module |
| AEM | Automatic Experimental Monitoring |
| AEM | Abnormal Eye Movement |
| AEM | Advanced Effect Maker (software) |
| AEM | Applied Electromagnetics, Inc (Hampton, VA) |
| AEM | Association Européenne des Elus de Montagne (French: European Association of Elected Representatives from Mountain Regions; est. 1991) |
| AEM | Applied Economics and Management (education) |
| AEM | Advanced Engineering Mathematics |
| AEM | Archivo Eclesiastico Metropolitano |
| AEM | Agence pour l'Emploi des Militaires (French: Military Employment Agency) |
| AEM | Agricultural Environmental Management (New York) |