| Abbreviation | Definition |
|---|---|
| ARAC | Aviation Regulatory Advisory Committee |
| ARAG | Anti-Reflective Anti-Glare |
| ARAI | Automotive Research Association of India |
| ARAN | Automatic Road Analyzer |
| ARAV | Aegis Readiness Assessment Vehicles |
| ARC | Actual Rolling Conditions |
| ARC | Airline Reporting Corporation |
| ARC | Allison Road Center |
| ARCCH | Advanced Robotic Crane for Container Handling |
| ARD | Aviation Recreation Design |
| ARF | Affordable Rental Fleet |
| ARF | Airport Reservation Function |
| ARFF | Aircraft Rescue & Fire Fighting |
| ARINC | Aeronautical Radio Incorporated |
| ARM | Airline Route Map |
| ARM | Application Response Measurement |
| ARM | Association of Railway Museums |
| ARM | Association of Recovering Motorcyclists |
| ARMS | Airline Reservation Management System |
| ARMS | Airline Risk Management Solutions |