OARSA
| Acronym | Definition |
|---|---|
| OARSA | Of A Revolution Setlist Archive |
| OARSA | Office of Applied Research and Safety Assessment (US FDA) |
| OARSA | Oklahoma Association of Retired School Administrators |
| OARSA | Oxacillin and Aminoglycoside-Resistant Staphylococcus Aureus (bacteria) |