| Acronym | Definition |
|---|
| DECI➣Diagnostic de l'Eclairage Intérieur (French: Diagnosis of Interior Lighting; software) |
| DECI➣Defence Cooperation Initiative |
| DECI➣Devereux Early Childhood Initiative (Villanova, PA) |
| DECI➣Decision Evaluator for the Cattle Industry |
| DECI➣Downtown Eau Claire, Inc. (Wisconsin) |
| DECI➣Designated Erosion Control Inspector |
| DECI➣Developing Enterprise Community Initiative |
| DECI➣DEISA (Distributed European Infrastructure for Supercomputing Applications) Extreme Computing Initiative (EU) |