| Acronym | Definition |
|---|
| ATAS | Academy of Television Arts & Sciences |
| ATAS | Academic Technology Approval Scheme (UK) |
| ATAS | Aboriginal Tutorial Assistance Scheme |
| ATAS | Aero-Tropics Air Services (Australia) |
| ATAS | Air-to-Air Stinger |
| ATAS | Advanced Tank Armament System |
| ATAS | Active Towed Array Sonar |
| ATAS | Australian Tsunami Alert System |
| ATAS | Association of Turkish American Scientists |
| ATAS | Advance Technology Alert System |
| ATAS | Audit Trail Analysis System |
| ATAS | Advanced Towed-Array Sonar |
| ATAS | Advanced Tactical Airborne System |
| ATAS | Acoustic Training and Simulation |
| ATAS | Advanced Trainer Avionics Suite |
| ATAS | Analog Test Access System |
| ATAS | Advanced TOW Acquisition Systems |
| ATAS | Advanced Target Acquisition Sensor/System |
| ATAS | Automatic Terrain Avoidance System |
| ATAS | Airborne Target Acquisition System |