| Abbreviation | Definition |
|---|---|
| JTAC | Joint Terrorism Analysis Center |
| JTACE | Joint Technical Advisory Chemical, Biological, Radiological, and Nuclear Element |
| JTACMS | Joint Tactical Missile System |
| JTACS | Joint Tactical Area Communications System |
| JTACS | Joint Tactical Army Communications System |
| JTADS | Joint Tactical Air Defense System (Army) |
| JTADS | Joint Tactical Display System |
| JTADS | Joint TADIL-A (TActical Data Information Link) Distribution System |
| JTAG | Joint Technology Assessment Group |
| JTAGG | Joint Turbine Advanced Gas Generator |
| JTAGS | Joint Tactical Air to Ground Station |
| JTAGS | Joint Tactical Ground Station (Army and Navy) |
| JTAGS | Joint Tactical Ground Station (Army) |
| JTAGS | Joint Tactical Ground System |
| JTAMS | Joint Tactical Missile Signatures |
| JTAO | Joint Tactical Air Operations |
| JTAR | Joint Tactical Air Strike Request |
| JTASC | Joint Training Analysis and Simulation Center |
| JTASC | Joint Training, Analysis, and Sim Center |
| JTASC | Joint Training, Analysis, and Simulation Center |