| Abbreviation | Definition |
|---|---|
| APTG | Association du Patrimoine et des Traditions Gendarmerie |
| APTI | Association For Preservation Technology International |
| APTI | Association of Pharmaceutical Teachers of India |
| APTIS | Association of Programmes in Translation and Interpreting Studies |
| APTL | Association of Part Time Librarians |
| APTMA | Association of Patent and Trade Mark Attorneys |
| APTO | Association of Professional Towers Ohio |
| APTRA | Arizona Professional Towing and Recovery Association |
| APTRA | Arizona Professional Towing Recovery Association |
| APTRA | Asia Pacific Travel Retail Association |
| APTRA | Associated Press Television and Radio Association |
| APTTA | Australasian Piano Tuners Technicians Association |
| APTTT | Association of Professional Theatre Trainers and Teachers (Canada) |
| APTU | Association of Public Transport Users |
| APTW | Association of Professional and Technical Writers |
| APV | Association of Poinciana Villages |
| APV | Association of Primate Veterinarians |
| APVMA | American Pre Veteriary Medical Association |
| APVMA | American Pre Veterinary Medical Association |
| APVP | Association of Principals and Vice Principals |