| Acronym | Definition |
|---|
| JDEC➣Joint Data Exchange Center (US/Russian missile warning) |
| JDEC➣Japan Dam Engineering Center (est. 1982) |
| JDEC➣Jazz Dance Education Council (Richmond, VA) |
| JDEC➣Jinan Diesel Engine Co. Ltd. (est. 1920) |
| JDEC➣Joint Document Exploitation Center (US DoD) |
| JDEC➣Jerusalem District Electricity Company (est. 1956; Israel) |
| JDEC➣Jefferson Davis Enterprise Center (now BizWorks; Richmond, VA) |