| Abbreviation | Definition |
|---|---|
| APPTC | Asia Pacific Plasma Theory Conference |
| APRCC | Asia Pacific Responsible Care Conference |
| APREC | Asia Pacific Regional Education Conference |
| APREC | Asia Pacific Research Ethics Conference |
| APSC | Asia Pacific Stroke Conference |
| APSC | Automotive Parts Suppliers Conference |
| APSEC | Asia Pacific Software Engineering Conference |
| APSEC | Asia-Pacific Software Engineering Conference |
| APSSC | Asia Pacific Social Science Conference |
| APSSC | Asia Pacific Social Sciences Conference |
| APTU | Asia Pacific Taxpayers Union |
| APUC | Asia Pacific User Conference |
| AQC | American Quality Congress |
| AQCB | Air Quality Conference Brazil |
| AQSDT | Symposium on Assessment of Quality Software Development Tools |
| ARITH | Symposium on Computer Arithmetic |
| ARMS | Annual Reliability and Maintainability Symposium |
| ARRAYS | International Conference on Systolic Arrays |
| ARSC | Applied Regional Science Conference |
| ARTC | Asian Refining Technology Conference |