| ATACS | Advanced Target Acquisition Counterfire System 
| Others |
| ATACS | Advanced Train Administration and Communication System
| Others |
| ATACS | Alaska Trauma Acute Care Surgery
| Others |
| ATACS | Alaska Trauma and Acute Care Surgery
| Others |
| ATACS | Army Tactical Area Communications System
| Others |
| ATACS | Army Tactical Communications System
| Others |
| ATACS | Automated Tactical Ammunition Classification System
| Others |