| Abbreviation | Definition |
|---|---|
| UNSR | United Nations Society Regensburg |
| UNSR | United Nations Special Rapporteur |
| UNSR | United Nations Special Representative |
| UNSR | United Nations Standard Rules |
| UNSWAP | United Nations System-wide Action Plan |
| UNT | United Nation Troops |
| UNTAC | nited Nations Transitional Authority in Cambodia |
| UNTAC | United Nations Transitional Authority in Cambodia |
| UNTAES | United Nations Transitional Administration for Eastern Slavonia |
| UNTAES | United Nations Transitional Administration in Eastern Slavonia |
| UNTAET | United Nations Transitional Administration in East Timor |
| UNTAG | United Nations Transition Assistance Group |
| UNTMIH | nited Nations Transition Mission in Haiti |
| UNTMIH | United Nations Transition Mission in Haiti |
| UNTS | United Nations Treaty Series |
| UNTSO | United Nations Truce Supervision Operation |
| UNTSO | United Nations Truce Supervision Organisation |
| UNTSO | United Nations Truce Supervision Organization |
| UNTT | United Nations Task Team |
| UNU | nited Nations University |