| Abbreviation | Definition |
|---|---|
| ASSEC | Alaska Statewide Special Education Conference |
| AST | IEEE International Symposium on Assessment of Software Tools |
| ASTC | Advanced Semiconductor Technology Conference |
| ASTC | Aerospace Systems and Technology Conference |
| ASW | Affiliate Summit West |
| ASWC | Asian Semantic Web Conference |
| ASWEC | Arkansas Soil and Water Education Conference |
| ASWEC | Australian SoftWare Engineering Conference |
| ASWN | Workshop on Applications and Services in Wireless Networks |
| ASYNC | International Symposium on Advanced Research in ASYNchronous Circuits and Systems |
| AT | Advanced Technologies Intelligent Vision Conference |
| AT | Advanced Technologies Intelligent Vision Conference |
| ATC | Arctic Technology Conference |
| ATC | Audio Tele-Conference |
| ATCE | Annual Technical Conference and Exhibition |
| ATCE | Annual Technical Conference and Exposition |
| ATDC | Anniversary Training and Development Conference |
| ATEC | Athletic Training Educators Conference |
| ATEC | Athletic Training Educator's Conference |
| ATEC | Athletic Training Educators' Conference |