Sigla Nombre
UATI International Union of Technical Associations and Organizations
UATP Universal Air Travel Plan
UC Berkeley University of California, Berkeley
UEA - Esperanto Universala Esperanto-Asocio
UFI The Global Association of the Exhibition Industry
UIA International Union of Architects
UIC International Union of Railways
UILI Union Internationale des Laboratoires Indépendants (UILI)
UIOE International Union of Oenologists
UIP International Union of Wagon Keepers a.i.s.b.l.
UN United Nations
UN Geospatial Network United Nations Geospatial Network
UN Habitat United Nations Centre for Human Settlements
UN Women United Nations Entity for Gender Equality and the Empowerment of Women
UN-GGIM Americas United Nations Committee of Experts on Global Geospatial Information Management
UN-GGIM SC on Geodesy United Nations Global Geospatial Information Management Subcommittee on Geodesy
UN-GGIM-AP Regional Committee of United Nations Global Geospatial Information Management for Asia and the Pacific
UN/ECE CEFACT UN/ECE CEFACT
UNCDF United Nations Capital Development Fund
UNCTAD United Nations Conference on Trade and Development
UNDDR United Nations Office for Disaster Risk Reduction
UNDP United Nations Development Programme
UNECA United Nations Economic Commission for Africa
UNECE United Nations Economic Commission for Europe
UNEP United Nations Environment Programme
UNEP FI United Nations Environment Programme Finance Initiative
UNESCAP United Nations Economic and Social Commission for Asia and the Pacific
UNESCO United Nations Educational, Scientific and Cultural Organization
UNESCWA United Nations Economic and Social Commission for Western Asia
UNFCCC United Nations Framework Convention on Climate Change
UNFPA United Nations Population Fund
UNGEGN United Nations Group of Experts on Geographical Names
UNHCR United Nations High Commissioner for Refugees
UNICEF United Nations Children's Fund
UNICODE The Unicode Consortium
UNIDO United Nations Industrial Development Organization
UNIFE UNIFE - The European Railway Industries
UNOPS United Nations Office for Project Services
UNSCETDG UN/ECOSOC Sub-Committee of Experts on the transport of Dangerous Goods (TDG)
UNU-INWEH United Nations University Institute for Water, Environment and Health
UNWTO World Tourism Organization
UPU Universal Postal Union
USP US Pharmacopeial Convention
USPI Uitgebreid Samenwerkingsverband ProcesIndustrie, Nederland
UXPA User Experience Professionals Association