| Acronym | Definition |
|---|
| DAEC | Direction de l'Aménagement, de l'Environnement et des Constructions (French: Directorate of Planning, the Environment and Buildings; Switzerland) |
| DAEC | Direction de l'Action vers les Entreprises et les Collectivités (French: Direction of Action to Businesses and Communities) |
| DAEC | Duane Arnold Energy Center (Iowa) |
| DAEC | Direction des Affaires Européennes et de la Coopération Décentralisée (French: European Affairs Department and Decentralized Cooperation) |
| DAEC | Direction Académique des Examens et Concours (French: Directorate of Academic Exams and Competition) |
| DAEC | Délégation Académique à l'Education Culturelle (French: Academic Delegation of Cultural Education) |
| DAEC | Développement Aménagement Environnement Conseil (French: Environment Development Planning Council) |
| DAEC | Diffuse-Adhering Escherichia Coli (bacterium) |
| DAEC | Deutscher Aero Club eV (German Aero Club) |
| DAEC | Defense Acquisition Excellence Council |
| DAEC | Darebin Arts and Entertainment Centre (Australia) |
| DAEC | Danish Atomic Energy Commission |
| DAEC | Durango Adult Education Center (Durango, CO) |