| AATS | Accommodation Allowance for Tertiary Students 
| Others |
| AATS | Accreditation and training Services
| Others |
| AATS | Act Assurance Testing System
| Others |
| AATS | Advance Animation Training school
| Others |
| AATS | Air Ambulance Transfer System
| Others |
| AATS | Aircrew Aircraft Tasking System
| Others |
| AATS | American Academy of Teachers of Singing
| Others |
| AATS | American Association for Thoracic Surgery
| Others |
| AATS | Ames Airborne Tracking Sunphotometer
| Others |
| AATS | Animal- Assisted Therapy Services
| Others |
| AATS | Annapolis Area Tennis School
| Others |
| AATS | Anti Auto Theft Squad
| Others |
| AATS | Association Of Athletic Training Students
| Others |
| AATS | Automated Animal Tracking System
| Others |
| AATS | Automated Application and Testing Solution
| Others |
| AATS | Average Annual Taxable Salary
| Others |