| Acronym | Definition |
|---|
| ATCS | Air Traffic Control Section (US DoD) |
| ATCS | Advanced Traffic Control Centres |
| ATCS | Air Traffic Control Specialist |
| ATCS | Air Traffic Control System |
| ATCS | Advanced Train Control System |
| ATCS | Ascent Training & Consultancy Services (Hyderabad, India) |
| ATCS | Australasian Telephone Collectors Society (Moorebank, NSW, Australia) |
| ATCS | Advanced Tactical Communications System |
| ATCS | Antique Telephone Collectors Association |
| ATCS | Advanced Technology Crew Station |
| ATCS | Air Traffic Communications Station |
| ATCS | Active Thermal Control System/Subsystem |
| ATCS | Audit Tracking and Control System (environment) |
| ATCS | Automated Test and Calibration System |
| ATCS | Aircraft/Airborne Tactical Control System |
| ATCS | Patient Evaluation & Conferencing System (Rehabilitation Foundation, Inc.) |
| ATCS | Senior Chief Aviation Electronics Technican (USN rating) |
| ATCS | A Total Consulting Service (Virginia) |
| ATCS | Automated Technical Control System |
| ATCS | Aviation Tactical Communication Systems |