| Acronym | Definition |
|---|
| ATACS | Army Tactical Communications System |
| ATACS | Amphibious Tactical Air Control System |
| ATACS | Army Tactical Area Communications System |
| ATACS | Army Tactical Air Control System |
| ATACS | Advanced Train Administration and Communications System |
| ATACS | Automated Tactical Manual Supplement |
| ATACS | All-Terrain All-purpose Cart Sled |
| ATACS | Acquisition Tracking and Control System |
| ATACS | Advanced Tank Cannon System |
| ATACS | Advanced Target Acquisition Counterfire System |
| ATACS | Asset Tracking and Accountability Control System (US Navy) |
| ATACS | Advanced Tactical Air Command System |