| Abbreviation | Definition |
|---|---|
| ASVS | Asian Society For Vascular Surgery |
| ASW | Autism Society of Washington |
| ASW | Autism Society of Wisconsin |
| ASWV | Autism Society of West Virginia |
| ASWW | Alzheimer Society of Waterloo Wellington |
| ASWW | Alzheimer Society Waterloo Wellington |
| ASZ | American Society of Zoologists |
| ATA | Argentine Toxicologial Association |
| ATA | Asociacin Toxicolgica Argentina |
| ATA | Asociación Toxicológica Argentina |
| ATA | Association of Automotive Engineering |
| ATA | Associazione Tecnica dell'Automobile |
| ATC | Association des Transports du Canada |
| ATC | Transportation Association of Canada |
| ATDS | American Theatre and Drama Society |
| ATDS | Annapolis Traditional Dance Society |
| ATEG | Assembly for the Teaching of English Grammar |
| ATeLP | Associação de Tradução em Língua Portuguesa |
| ATeLP | Associao de Traduo em Lngua Portuguesa |
| ATeLP | Association for Translation into the Portuguese Language |