| Abbreviation | Definition |
|---|---|
| JCSX | Joint Chiefs of Staff eXercise |
| JCTN | Joint Composite Track Network |
| JCX | Joint Control eXercise |
| JD | Joint Driver |
| JD | Julian Day |
| JDA | Joint Defense Assignment |
| JDA | Joint Deployment Agency |
| JDA | Joint Duty Assignment |
| JDAAP | Joint Doctrine Awareness Action Plan |
| JDAC | Joint Designation Appeals Committee |
| JDAC | Joint Doctrine Air Campaign |
| JDAL | Joint Duty Assignment List |
| JDAM | Joint Direct Attack Munition |
| JDAMIS | Joint Duty Assignment Management Information System |
| JDAT | Joint Deployable Analysis Team |
| JDC | Jeff Davis Camp |
| JDC | Joint Deployment Community |
| JDC | Joint Doctrine Center |
| JDCP | Joint Distributed Collaborative Planning |
| JDD | Joint Doctrine Distribution |