| Acronym | Definition |
|---|
| ADEC➣Alaska Department of Environmental Conservation |
| ADEC➣Abu Dhabi Education Council |
| ADEC➣Action de Développement de l'Emploi et des Compétences (French: Employment and Skills Development Action) |
| ADEC➣Advanced Digital Entertainment Corporation |
| ADEC➣American Distance Education Consortium |
| ADEC➣Australian Drug Evaluation Committee |
| ADEC➣Association of Death Education and Counseling |
| ADEC➣Autonomous Decentralized Traffic Control System (Japan) |
| ADEC➣African Development Economic Consultants (South Africa) |
| ADEC➣Advocacy Disability Ethnicity Community (Australia) |
| ADEC➣Aylesbury Development Education Centre (UK) |
| ADEC➣Aviation Digital Exploitation Capability |
| ADEC➣Associate Degree Equivalency Certificate |
| ADEC➣Asociación de Exportadores de Café (Coffee Exporters' Association, Guatemala) |
| ADEC➣Astronomy Data Centers Executive Committee |
| ADEC➣Airborne Defensive Electronic Countermeasures |
| ADEC➣Association of Distance Education Colleges of South Africa (RSA) |
| ADEC➣Adaptive Detection Estimation Correlation |
| ADEC➣Arab Architectural Design and Engineering Consultancy (stock symbol) |
| ADEC➣Advanced Diesel Electronic Controls |