| Term | Full Form | Category |
|---|---|---|
| OSRA | Ocean Shipping Reform Act | Others |
| OSRA | Office of Sponsored Research Administration | Others |
| OSRA | Office of Strategic Research and Analysis | Others |
| OSRA | Oil Spill Risk Analysis | Others |
| OSRA | Ontario Snow Resorts Association | Others |
| OSRA | Orthopaedic Surgery and Rehabilitation Associates | Others |