| ATCS | Academic Technology and Creative Services 
| Others |
| ATCS | Academy for Technology and Computer Science
| Others |
| ATCS | Active Thermal Control Subsystem
| Others |
| ATCS | Active Thermal Control System
| Others |
| ATCS | Active Thermal Convection System
| Others |
| ATCS | Active Thermal Convective System
| Others |
| ATCS | Active Torque Control System
| Others |
| ATCS | Adaptive Traffic Control System
| Others |
| ATCS | Advanced Tactical Communication System
| Others |
| ATCS | Advanced Thermal Cooling Solution
| Others |
| ATCs | Advanced Traffic Control Centres
| Others |
| ATCS | Advanced Train Control System
| Others |
| ATCS | Air Traffic Control Section
| Others |
| ATCS | Air Traffic Control Specialist
| Others |
| ATCS | All Terrain Control System
| Others |
| ATCS | Allied Training Centre South
| Others |
| ATCS | American Trademark Construction Services
| Others |
| ATCS | Amundi Technologies Control and Supervision
| Others |
| ATCS | Approaches To Cognitive Science
| Others |
| ATCS | Area Traffic Control System
| Others |
| ATCS | Art Therapy Certified Supervisor
| Others |
| ATCS | Asian Touring Car Series
| Others |
| ATCS | Atcsautomatic Temperature Controlled Stowage
| Others |
| ATCS | Atlanta Telugu Christhava Samavesam
| Others |
| ATCS | Automated Terminal Control System
| Others |
| ATCS | Automatic Temperature Controlled Stowage
| Others |
| ATCS | Automobile and Touring Club of Syria
| Others |
| ATCS | Aviation Electronics Technician Senior Chief Petty Officer
| Others |