| Acronym | Definition |
|---|
| ARSA➣Aberrant Right Subclavian Artery (anatomy) |
| ARSA➣Arylsulfatase A |
| ARSA➣Aeronautical Repair Station Association |
| ARSA➣Airheads Radio Survey Archive |
| ARSA➣Auto Rétro Sport d'Armorique (French sports car club) |
| ARSA➣Airport Radar Service Area |
| ARSA➣Automated Radioxenon Sampler/Analyzer |
| ARSA➣Akita Rescue Society of America, Inc. (est. 1976) |
| ARSA➣Associate of the Royal Scottish Academy |
| ARSA➣Alberta River Surfing Association (Calgary, AB, Canada) |
| ARSA➣Airborne Reconnaissance and Surveillance Architecture |
| ARSA➣Anglican Rite Synod in the Americas |