ONU may refer to:
*
United Nations in other languages, e.g. French ''Organisation des Nations Unies'' and Arabic: ''منظمة الأمم المتحدة''
*
Olivet Nazarene University
*
Ohio Northern University
* Optical Network Unit, the IEEE term for what is called an
Optical Network Terminal in ITU-T terminology
*
Order of Nunavut
*
Organizacion de Narcotraficantes Unidos
The Organizacion de Narcotraficantes Unidos (ONU, or La ONU) (in English: United Drug Traffickers), is a Puerto Rican criminal organization based in Bayamón, Puerto Rico. It is an organization dedicated to drug dealing and unifying various well-k ...
, a Puerto Rican criminal organization
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