| Abbreviation | Definition |
|---|---|
| ASTAC | Arctic Slope Telephone Association Cooperative |
| ASTC | Association of Science and Tecnology Centers |
| ASTC | Association of Science-Technology Centers |
| ASTDA | All Sikkim Truck Drivers Association |
| ASTDA | American Sexual Transmitted Diseases Association |
| ASTE | Association for Science Teacher Education |
| ASTM | Association of Swiss Travel Management |
| ASTN | Association of Scottish Talking Newspapers |
| ASTO | Association of Sail Training Organisations |
| ASTO | Association of Scientific and Technical Officers |
| ASTP | Association des sciences et des techniques de la physiotherapie |
| ASTP | Association of Sunless Tanning Professionals |
| ASTRA | American Specialty Toy Retailing Association |
| ASTRA | Australian Subscription Television and Radio Association |
| ASUC | Association of Specialist Underpinning Contractors |
| ASVB | Association of Silicon Valley Brokers |
| ASVC | Association Sportive Vitrac Correze |
| ASVE | Association Suisse Des Vignerons |
| ASVI | Association suisse vigilance islam |
| ASVJ | Association Sportive Versailles Jussieu |