| Acronym | Definition |
|---|
| JTAC➣Joint Terminal Attack Controller |
| JTAC➣Joint Terrorism Analysis Centre (UK) |
| JTAC➣Juniper Technical Assistance Center (various locations) |
| JTAC➣Joint Tactical Air Controller |
| JTAC➣John Tarleton Agricultural College (now Tarleton State University; Texas) |
| JTAC➣Joint Technical Advisory Committee |
| JTAC➣Joint Tactical Augmentation Cell (joint military operations) |
| JTAC➣Joint Training Advisory Council |