| Acronym | Definition |
|---|
| DECM➣Defensive Electronic Countermeasures |
| DECM➣Decision Maker |
| DECM➣Digital Equipment Communication Maintenance (UK) |
| DECM➣Diabetes Education Center of the Midlands (est. 1984) |
| DECM➣Design for Environmentally Conscious Manufacturing |
| DECM➣District Executive Council Meeting (Toastmasters) |
| DECM➣Deception/Deceptive Electronic Countermeasures |