| Abbreviation | Definition |
|---|---|
| JHQ | Joint HeadQuarters |
| JHV | Joint Hybrid Vehicle |
| JI | Joint Inspection |
| JIA | Japanese Imperial Army |
| JIAC | Joint Imagery Analysis Center |
| JIAC | Joint Imagery Analysis Course |
| JIAC | Joint Imagery Analysis Courses |
| JIACG | Joint Interagency Coordination Group |
| JIADS | Joint Integrated Air Defense System |
| JIATF | Joint Interagency Task Force |
| JIATF-E | Joint Interagency Task Force - East |
| JIATF-S | Joint Interagency Task Force - South |
| JIATF-W | Joint Interagency Task Force - West |
| JIAWG | Joint Integrated Avionics Work Group |
| JIB | Joint Integration Board |
| JIB | Joint Intelligence Board |
| JIB | Joint Intelligence Bureau |
| JIC | Janes Inner Circle intelligence news |
| JIC | Janes Intelligence Digest |
| JIC | Joint Intelligence Center |