| Abbreviation | Definition |
|---|---|
| APID | Advanced Placement International Diploma |
| APID | Agile Protein Interaction DataAnalizer |
| APID | Agile Protein Interaction DataAnalyzer |
| APID | Analog Power and Interface Division |
| APID | Application Process Identifier DEMETER |
| APID | Application Program Interface Division |
| APIDS | Automated Prohibited Item Detection Systems |
| APIE | Abstraction Polymorphism Inheritance and Encapsulation |
| APIE | Assessment Plan Intervention Evaluation |
| APIE | Average Percentage Improvement Excluding |
| APIEE | Associacao Portuguesa dos Industriais de Engenharia Energetica |
| APIF | Accountability and Performance Improvement Framework |
| APIF | Akademia Prototypowania i Fabrykacji |
| APIF | Apif |
| APIF | ASOCIACIÓN PROFESIONAL E INDEPENDIENTE DE FISCALES |
| APIFARMA | Apipharma |
| APIG | A Pig's |
| APIG | Antisymmetrized Product of Identical Geminals |
| APII | Agency for the Promotion of Industry and Innovation |
| APII | Asia Pacific Information Infrastructure |