| Acronym | Sense | Language | Topics |
|---|---|---|---|
| OIR | Open Item Report | In English | |
| OIR | Operations Integration Review | In English | |
| OIR | Organisation Internationale pour les Réfugiés = IRO | International Refugee Organization | In English |
In French | → United Nations → Migrations |
| OIR | Office of Information Resources | In English | → Documentation |
| OIR | Organización Internacional para los Refugiados | In Spanish | → United Nations → Migrations |