| Acronym | Definition |
|---|
| ATLA | Association of Trial Lawyers of America |
| ATLA | American Trial Lawyers Association |
| ATLA | American Theological Library Association |
| ATLA | Avatar: The Last Airbender (TV show) |
| ATLA | Association de la Transformation Laitière Française (French: Association of French Dairy Processing) |
| ATLA | Access to Learning Award (Bill and Melinda Gates Foundation) |
| ATLA | Another Three-Letter Acronym |
| ATLA | Air Transport Licensing Authority (Hong Kong) |
| ATLA | Association of Teachers of Lipreading to Adults |
| ATLA | Associação Terra Laranjeiras (Portuguese: Laranjeiras Land Association; Laranjeiras, Brazil) |
| ATLA | Army Top Level Architecture |
| ATLA | Adult T-Cell Leukemia Virus-Associated Antibody |