| Acronym | Definition |
|---|
| DECC | Department of Energy and Climate Change |
| DECC | Duluth Entertainment Convention Center (Duluth, MN) |
| DECC | Duke Energy Convention Center (Global Spectrum; Cincinnati, OH) |
| DECC | Direction des Examens, des Concours et de la Certification (French: Directorate of Examinations, Competitions and Certification; Cameroon) |
| DECC | Defense Enterprise Computing Centers |
| DECC | Distance Education Coordinating Council |
| DECC | Department of the Environment and Climate Change (UK) |
| DECC | Danish-Estonian Chamber of Commerce (Tallinn, Estonia) |
| DECC | Distributed Energy Communications and Control |