| Abbreviation | Definition |
|---|---|
| UNRWA | United Nations Relief and Work Agency |
| UNRWA | United Nations Relief and Works Agency |
| UNRWA | United Nations Relief and Works Agency for palestine refugees in the near east |
| UNRWA | United Nations Relief Works Agency |
| UNS | United Nations Ship |
| UNSA | United Nations Space Alliance |
| UNSA | United Nations Student Association |
| UNSAS | United Nations Somali Assistance Strategy |
| UNSAS | United Nations Standby Arrangement Systems |
| UNSAS | United Nations Standby Arrangements System |
| UNSAS | United Nations System Accounting Standards |
| UNSAS | United Nations Systems Accounting Standards |
| UNSC | United Nations Security Council |
| UNSC | United Nations Space Colonies |
| UNSC | United Nations Space Command |
| UNSC | United Nations Special Corps |
| UNSC | United Nations Statistical Commission |
| UNSCC | United Nations Standards Coordinating Committee |
| UNSCO | United Nations Scientific and Cultural Organisation |
| UNSCO | United Nations Special Co Ordinator |