| Term | Full Form | Category |
|---|---|---|
| OPNS | Oak Park Neighborhood School | Others |
| OPNS | Oakland Physician Network Services | Others |
| OPNS | One Pint Normal Saline | Others |
| OPNS | Only Problems Not Solutions | Others |
| OPNS | OPeratioNS phase | Others |
| OPNS | Outer Product Null Space | Others |