| Acronym | Definition |
|---|
| OARS➣Outdoor Adventure River Specialists (guide service) |
| OARS➣Open-Ended Questions, Affirmations, Reflective Listening, Summaries (psychiatry) |
| OARS➣Orientation, Advising and Registration Session (North Idaho College) |
| OARS➣Open Access Repository System (University of Oxford; UK) |
| OARS➣Outlying Area Reporting Station (US DHS) |
| OARS➣Ontario Association of Remote Sensing |
| OARS➣Open Architectural Retrieval System (Navy) |
| OARS➣Obligation Adjustment Reporting System (USAF) |
| OARS➣Online Access Request System |
| OARS➣Olympic Athletes Rowing at Saugatuck |
| OARS➣Ocean Area Reconnaissance Satellite |
| OARS➣Older Americans Resources Study |