| Acronym | Definition |
|---|
| AARS | All-America Rose Selections |
| AARS | Asian Association on Remote Sensing (Japan) |
| AARS | Atlanto-Axial Rotatory-Subluxation (disorder) |
| AARS | Automated Accounting and Reporting System (gambling; Montana) |
| AARS | Army Amateur Radio System |
| AARS | After Action Review System |
| AARS | Appeals Account Resolution Specialist (US IRS) |
| AARS | American Association of Riding Schools |
| AARS | Advanced Aircraft Recovery System (US Navy) |
| AARS | Automated Aircraft Reporting System |
| AARS | Advanced Airborne Radiac Systems |
| AARS | Affordable Apache Rotor System (attack helicopter system redesign) |
| AARS | Automated Account Request System (router network) |
| AARS | Alabama Association of Rescue Squads, Inc. |
| AARS | Advanced Airborne Radar System |
| AARS | Ammunition Asset Reporting System |
| AARS | Air Force Rescue & Recovery Service |