| Acronym | Definition |
|---|
| ONU➣Ohio Northern University |
| ONU➣Organisation des Nations Unies (French: United Nations) |
| ONU➣Organização das Nações Unidas (Portuguese: United Nations) |
| ONU➣Organizacion de Naciones Unidas (Spanish: United Nations) |
| ONU➣Optical Network Unit |
| ONU➣Organizzazione delle Nazioni Unite (Italian: United Nations) |
| ONU➣Organizatia Natiunilor Unite (Romania) |
| ONU➣Olivet Nazarene University |
| ONU➣One Nation United (Redmond, WA) |
| ONU➣Otto Normal User (German) |