| AEN | Academic Engagement Network 
| Others |
| AEN | Academy of Emergency Nursing
| Others |
| AEN | Accelerated Event Notification
| Others |
| AEN | Acute Esophageal Necrosis
| Others |
| AEN | Additional Educational Needs
| Others |
| AEN | Address Enable
| Others |
| AEN | Adult Education Network
| Others |
| AEN | Adult Entertainment Network
| Others |
| AEN | Advantage Employee Network
| Others |
| AEN | Africa Evidence Network
| Others |
| AEN | Agence pour l'Energie Nucléaire
| Others |
| AEN | All Element Number
| Others |
| AEN | American Entertainment Network
| Others |
| AEN | Anaconda Enterprise Notebooks
| Others |
| AEN | Anal Epithelial Neoplasia
| Others |
| AEN | Anchin Executive Network
| Others |
| AEN | Anterior Ethmoidal Nerve
| Others |
| AEN | Aotearoa Ethnic Network
| Others |
| AEN | Apoptosis Enhancing Nuclease
| Others |
| AEN | Apprenticeship Employment Network
| Others |
| AEN | Arizona Emergency Net
| Others |
| AEN | Armenian Environmental Network
| Others |
| AEN | Art Entertainment Network
| Others |
| AEN | Artists Entertainment Network
| Others |
| AEN | Asahi Evening News
| Others |
| AEN | Aseptic Epiphyseal Necrosis
| Others |
| AEN | Asian Ecotourism Network
| Others |
| AEN | ATCCS (Army Tactical Command and Control System) Engineering Network
| Others |
| AEN | Athletic Edge Nutrition
| Others |
| AEN | Audiences Europe Network
| Others |
| AEN | Australian European Network
| Others |
| AEN | Auto Echo Enable
| Others |
| AEN | Automatic Event Notification
| Others |
| AEN | Automotive Engineering Network
| Others |