The United Nations are organized in this way:

Programs and Funds

* UNCTAD - United Nations Conference on Trade and Development
* ITC - International Trade Centre (UNCTAD/WTO)
* UNDCP - United Nations Drug Control Programme
* UNDP - United Nations Development Programme
* UNIFEM - United Nations Development Fund for Women
* UNV - United Nations Volunteers
* UNEP - United Nations Environment Programme
* UNFPA - United Nations Fund for Population Activities
* UNHCR - Office of the United Nations High Commissioner for Refugees
* UN-HABITAT - United Nations Human Settlements Programme (UN-HABITAT)
* UNICEF - United Nations Children's Fund
* WFP - World Food Programme
* UNRWA - United Nations Relief and Works Agency for Palestine Refugees in the Near East (Reports only to the General Assembly)

Research and training institutes

* INSTRAW - International Research and Training Institute for the Advancement of Women
* UNICRI - United Nations Interregional Crime and Justice Research Institute
* UNITAR - United Nations Institute for Training and Research
* UNRISD - United Nations Research Institute for Social Development
* UNIDIR - United Nations Institute for Disarmament Research (Reports only to the General Assembly)

Other Entities

* COPUOS - United Nations Committee on the Peaceful Uses of Outer Space
* OHCHR - Office of the United Nations High Commissioner for Human Rights
* UNOPS - United Nations Office for Project Services
* UNU - United Nations University
* UNOOSA - United Nations Office for Outer Space Affairs
* UNSSC - United Nations System Staff College
* UNAIDS - Joint United Nations Programme on HIV/AIDS
* UNRRA - United Nations Relief and Rehabilitation Administration (ceased to exist in 1949)
* UPEACE - United Nations Mandated University for Peace

Functional Commissions

* UN Commission for Social Development
* UN Commission on Human Rights (UNCHR): Disbanded 2006, replaced by the United Nations Human Rights Council (UNHRC), a subsidiary organ of the General Assembly.
* Commission on Narcotic Drugs
* Commission on Crime Prevention and Criminal Justice
* Commission on Science and Technology for Development (CSTD)
* Commission on Sustainable Development (CSD)
* UN Commission on the Status of Women (UN CSW)
* Commission on Population and Development
* UN Statistical Commission

Regional Commissions

* United Nations Economic Commission for Europe (ECE)
* United Nations Economic Commission for Africa (ECA)
* United Nations Economic Commission for Latin America and the Caribbean (ECLAC)
* United Nations Economic and Social Commission for Asia and the Pacific (ESCAP)
* United Nations Economic and Social Commission for Western Asia (ESCWA)

Specialized Agencies

The Specialized Agencies are autonomous organizations working with the United Nations and each other, inter alia through the coordinating machinery of the Economic and Social Council.
* ILO - International Labour Organization
* FAO - Food and Agriculture Organization
* UNESCO - United Nations Educational, Scientific and Cultural Organization
* WHO - World Health Organization
* World Bank Group
* IMF - International Monetary Fund
* ICAO - International Civil Aviation Organization
* IMO - International Maritime Organization
* ITU - International Telecommunication Union
* UPU - Universal Postal Union
* WMO - World Meteorological Organization
* WIPO - World Intellectual Property Organization
* IFAD - International Fund for Agricultural Development
* UNICEF - United Nations Children Fund
* UNIDO - United Nations Industrial Development Organization
* UNDP - United Nations Development Programme
* IRO - International Refugee Organization(ceased to exist in 1952)
* INCB - International Narcotics Control Board

Other Entities:

* United Nations Forum on Forests
* Permanent Forum on Indigenous Issues (PFII)
* Sessional and Standing Committees Expert, ad hoc and related bodies

Peacekeeping Operations and Missions

* MONUC - United Nations Mission in the Democratic Republic of Congo
* UNAVEM III - United Nations Angola Verification Mission III
* UNDOF - United Nations Disengagement Observer Force
* UNFICYP - United Nations Peacekeeping Force in Cyprus
* UNIFIL - United Nations Interim Force in Lebanon
* UNMEE - United Nations Mission in Ethiopia and Eritrea
* UNMIK - United Nations Interim Administration Mission in Kosovo
* UNMIL - United Nations Mission in Liberia
* UNMIS - United Nations Mission In Sudan
* UNMOGIP - United Nations Military Observer Group in India and Pakistan
* UNMOVIC - United Nations Monitoring, Verification and Inspection Commission
* UNOMIG - United Nations Observer Mission in Georgia
* UNOMSIL - United Nations Mission of Observers in Sierra Leone
* UNSMIH - United Nations Support Mission in Haiti
* UNTSO - United Nations Truce Supervision Organization

Former Peacekeeping Operations and Missions

* ONUMOZ - United Nations Operation in Mozambique
* UNAMIR - United Nations Assistance Mission for Rwanda
* UNAMSIL - United Nations Mission in Sierra Leone
* UNCRO - United Nations Confidence Restoration Operation in Croatia
* UNIKOM - United Nations Iraq-Kuwait Observation Mission
* UNMIBH - United Nations Mission in Bosnia and Herzegovina
* UNMOP - United Nations Mission of Observers in Prevlaka
* UNMOT - United Nations Mission of Observers in Tajikistan
* UNTAET - United Nations Transitional Administration in East Timor