| Abbreviation | Definition |
|---|---|
| JSTARS | Joint Surveillance and Target Acquisition Radar System |
| JSTARS | Joint Surveillance target Acquisition Radar System |
| JSTARS | Joint Surveillance Target Attack Radar System |
| JSTE | Joint Service Training Exercise |
| JSTE | Joint System Training Exercise |
| JSTO | Joint Space Tasking Order |
| JSTPS | Joint Strategic Target Planning Staff |
| JSU | Joint Strategy Unit |
| JSZMC | Joint Surf Zone Mine Countermeasures |
| JT | Joint |
| JT | Joint Task |
| JT | Joint Test |
| JT&E | Joint Test and Evaluation |
| JTA | Joint Technical Architecture |
| JTA | Joint Travel Agreement |
| JTA(A) | Joint Table of Allowances |
| JTA(A) | Joint Technical Architecture(Army) |
| JTA(A) | Joint Transfer Agreement |
| JTAC | Joint Technical Augmentation Cell |
| JTAC | Joint Terminal Attack Controller |