| Acronym | Definition |
|---|
| AECS➣Atomic Energy Commission (Syria) |
| AECS➣Associació d'Estudiants de Ciències de la Salut (Catalan Health Sciences Students Association; Catalonia, Spain) |
| AECS➣Atomic Energy Central School (India) |
| AECS➣Association Étudiante du Cégep de Sherbrooke (French) |
| AECS➣Aeronautical Emergency Communications System (SIF) |
| AECS➣Advanced Environmental Control System |
| AECS➣Andalusian Education & Culture Solutions |
| AECS➣Automotive Electronic Control Systems (New Zealand/Australia) |
| AECS➣Advanced Entry Control System |
| AECS➣Senior Chief Aviation Electrician's Mate (Naval Rating) |
| AECS➣Auxiliary Emission Control Strategy |
| AECS➣Average Eye Closure Speed |
| AECS➣Advanced Signal Processing - Executable Common Software |
| AECS➣Accenture Energy Consumer Services (energy) |
| AECS➣Automated Error Control System |
| AECS➣Area Environmental Compliance Specialist |
| AECS➣Acquisition E3 Control Strategy |
| AECS➣Automatic Eigen Calculation System |
| AECS➣Asia Evangelical College and Seminary (Bangalore, India) |