| Abbreviation | Definition |
|---|---|
| JDTC | Joint Deployment Training Center |
| JDU | Janes Defence Upgrades |
| JDU | Joint Defense Unit |
| JDUP | Joint Deployment Update Processor |
| JDV | Janes Defense Weekly |
| JDW | Janes Defense Weekly |
| JDWP | Joint Doctrine Working Party |
| JE | Joint Experimentation |
| JE | Juliet Echo |
| JEAP | Joint Electronic Intelligence (ELINT) Analysis Program |
| JECC | Joint Enabling Capabilities Command |
| JECE | Joint Elimination Coordination Element |
| JECEWSI | Joint Electronic Combat Electronic Warfare Simulation |
| JECG | Joint Exercise Control Group |
| JECPO | Joint Electronic Commerce Program Office |
| JED | Japan Engineer District, U. S. Army Corps of Engineers |
| JEDD | Joint Education and Doctrine Division |
| JEDI | Joint Enterprise Defense Infrastructure |
| JEDI | Joint Exercise Driver for Intelligence |
| JEDI | Joint Expeditionary Digital Information |