| Abbreviation | Definition |
|---|---|
| ATES | Association of Teachers of English in Senegal |
| ATFA | Alabama TREASURE Forest Association |
| ATFA | American Treeing Feist Association |
| ATFA | American Turkish Friendship Association |
| ATFA | American Turpentine Farmers Association |
| ATFA | Australasian Timber Flooring Association |
| ATFA | Australian Table Football Association |
| ATFA | Australian Timber Flooring Association |
| ATFC | Association of Town Finance Committees |
| ATFS | Association of Track and Field Statisticians |
| ATFT | Association for Transformation in Film and Television |
| ATFT | Association of Transformation in Film and Television |
| ATGA | Austin Tour Guide Association |
| ATGA | Australian Table Grape Association |
| ATGC | Association of Therapeutic Goods Consultants |
| ATHE | Association for Theatre in Higher Education |
| ATHE | Association of Theatre in Higher Education |
| ATHP | Association of Teaching Hospital Pharmacists |
| ATI | Association of Translators and Interpreters |
| ATIA | Advanced Technical Intelligence Association |