| Abbreviation | Definition |
|---|---|
| APR | Apache Portable Runtime |
| APR | Application Portfolio Rationalization |
| APS | Agenda Productivity Suite |
| APSEC | Asia Pacific Software Engineering Conference |
| APSG | Advanced Programming Specialist Group |
| APSL | Advanced Programming Solutions SL |
| APT | Adaptive Performance Technology |
| APT | Advanced Package Tool |
| APT | Advanced Packaging Tool |
| APT | Almost Plain Text |
| APT | Annotation Processing Tool |
| Aptech | Aptech Computer Education is a institute based on IT |
| APTT | Analysis Prediction Template Toolkit |
| APU | Algebraic Programming Utilities |
| APUE | Advanced Programming in the Unix Environment |
| APW | Another Perl Wiki |
| APW | Asynchronous Page Writer |
| AQ | Active Queue |
| AQA | Automated Quality Assurance |
| AQRT | Address Quality Reporting Quality Tool |