COSAR
| Acronym | Definition |
|---|---|
| COSAR | Consortium of Semiconductor Advanced Research |
| COSAR | Correctional Officer Search and Rescue (Rhode Island) |
| COSAR | Council of State Affiliate Representatives (American Geriatrics Society) |
| COSAR | Central Okanagan Search and Rescue (Kelowna, BC, Canada) |
| COSAR | Chancellor's Office Systemwide Administrative Reporting Code (California State University) |
| COSAR | Compression Scanning Array Radar |