OCIA
| Acronym | Definition |
|---|---|
| OCIA | Overclock Intelligence Agency |
| OCIA | Office of Congressional and Intergovernmental Affairs (US government) |
| OCIA | Organic Crop Improvement Association |
| OCIA | Order of Christian Initiation of Adults |
| OCIA | Optically Coupled Interface Adapter |
| OCIA | Oklahoma Certified Installers Association |
| OCIA | Office of the Commissioner for Islamic Affairs |