| Abbreviation | Definition |
|---|---|
| APV | Advanced Performance Vehicles |
| APV | All Plastic Vehicle |
| APV | All Purpose Vehicle |
| APV | Ancillary Power Vehicle |
| APV | Armored Performance Vehicle |
| APV | Armored Performance Vehicles |
| APV | ASEAN Project Vehicle |
| APV | Attendance Policy Violation |
| APVD | Average Per Vehicle Distance |
| AQ | Amazon Queen |
| AQ | Auto Quest |
| AQP | Advanced Qualification Program |
| AQR | Airline Quality Rating |
| AQR | Automotive Quick Reference |
| AR | Alton Railroad |
| AR | Aylestone Road |
| AR55-80 | Highways for National Defense |
| ARA | Amsterdam-Rotterdam-Antwerp |
| ARA | Automotive Rebuilders Association |
| ARA | Automotive Recyclers Association |