| Acronym | Sense | Language | Topics |
|---|---|---|---|
| ÖCI | Österreichisches Controller-Institut (www.oeci.at) | In German | → Austria |
| OCI | Organizational Conflict of Interest | In English | |
| OCI | Officier Communication et Information | In French | → Military affairs |
| OCI | Officier Communication Information | In French | → Military affairs |