| Abbreviation | Definition |
|---|---|
| UNAMIR | nited Nations Assistance Mission for Rwanda |
| UNAMIR | United Nations Assistance Mission for Rwanda |
| UNAMSIL | United Nations Mission in Sierra Leone |
| UNAOC | United Nations Alliance of Civilizations |
| UNAR | United Nations Association of Rochester |
| UNASG | United Nations Agency for Sustainable Growth |
| UNAT | United Nations Administrative Tribunal |
| UNAT | United Nations Appeals Tribunal |
| UNAVEMII | nited Nations Angola Verification Mission II |
| UNAVEMII | United Nations Angola Verification Mission II |
| UNAVEMIII | nited Nations Angola Verification Mission III |
| UNAVEMIII | United Nations Angola Verification Mission III |
| UNBA | United Nations Board of Auditors |
| UNC | United Nations Coarse |
| UNCAC | UN Convention against Corruption |
| UNCAC | United Nation Convention Against Corruption |
| UNCAC | United Nations Convention against Corruption |
| UNCAF | United Nations of Central American Football |
| UNCB | United Nations Claims Board |
| UNCCC | United Nations Climate Change Conference |