ONU may refer to:
- United Nations in other languages, e.g. French Organisation des Nations Unies, Spanish Organización de las Naciones Unidas and Portuguese Organização das Nações Unidas
- Olivet Nazarene University
- Ohio Northern University
- Optical Network Unit, the IEEE term for Optical Network Terminal
- Order of Nunavut
- Organizacion de Narcotraficantes Unidos, a Puerto Rican criminal organization
- Onu (pronoun), Polish neopronoun
This disambiguation page lists articles associated with the title ONU.If an internal link led you here, you may wish to change the link to point directly to the intended article. Category: