| AATI | Adolescent and Adult Time Inventory 
| Others |
| AATI | Adult Abuse Training Institute
| Others |
| AATI | Advanced Analogic Technologies Inc
| Others |
| AATI | Advanced Analogic Technologies Incorporated
| Others |
| AATI | Advanced Analogic Techs Inc
| Others |
| AATI | Advanced Analytical Technologies Inc
| Others |
| AATI | American Advanced Technicians Institute
| Others |
| AATI | American Aerospace Technologies Inc
| Others |
| AATI | American Association of Teachers of Italian
| Others |
| AATI | Argentine Association of Translators and Interpreters
| Others |
| AATI | Australian Aboriginal Theatre Initiative
| Others |