English abbreviations from unitrep to unor
- UNITREP (Unit Report)
- UNITY (United Nashvillians Involved Together for Youth)
- UNIV (University)
- UNIX (Uniplexed Information and Computing Service)
- UNJ (University at New Jerusalem)
- UNJLC (United Nations Joint Logistic Centre)
- UNK (Unalakleet Airport)
- UNL (Universal Network Language)
- UNLBAA (University of Nebraska - Lincoln Band Alumni Association)
- UNLOC (United Nations Logistic Course)
- UNLV (University of Nevada, Las Vegas)
- UNM (University of New Mexico)
- UNMAA (University of New Mexico Alumni Association)
- UNMIK (United Nations Interim Administration Mission in Kosovo)
- UNMILPOC (United Nations Military Police Course)
- UNMOC (United Nations Military Observers Course)
- UNMOVCC (United Nations Movement Control Course)
- UNMOVIC (United Nations Monitoring, Verification and Inspection Commission)
- UNMP (University of New Mexico Press)
- UNMUHA (Universitas Muhammadiyah Aceh (Indonesia))
- UNN (Ranong Airport)
- UNNA (United Network of Newton Archives)
- UNO (Unit Number)
- UNOAA (University of Nebraska Omaha Alumni Association)
- UNOCHA (United Nations Office For The Coordination of Humanitarian Affairs)
- UNODC (United Nations Office On Drugs and Crime)
- UNODIR (UNless Otherwise DIRected)
- UNO-R (University of Negros Occidental - Recoletos)