| Abbreviation | Definition |
|---|---|
| ASST | Academy of Sunday School Teachers |
| ASTA | Arkansas State Teachers Association |
| ASTC | Appalachian State Teachers College |
| ASTD | American Society for Training and Development |
| ASTD | Automated System For Teaching Directors |
| ASTE | Alaska Society for Technology in Education |
| ASTER | Abuse Survivors Treatment and Education Resources |
| ASTI | Association of Secondary Teachers Ireland |
| ASTRAL | Ambient Smart Tags Repositories for Art Learning |
| ASTRO | Asashio Sogo Teachers ROom or |
| ASVAB | Armed Services Vocational Aptitude Battery |
| ASW | Analysis of Student Work |
| AT | Accessible Technology |
| ATA | Alcoholic Teacher Assistant |
| ATB | All The Best |
| ATC | Adult Training Centre |
| ATCP | Alternative Teacher Certification Project |
| ATDN | Adult Training and Development Network |
| ATE | Academy for Teacher Excellence |
| ATE | Advanced Technological Education |