An international organization is created to tackle issues from all over the world. The disputes between countries and issues that are affecting worldwide can be settled in these international organizations. A large number of countries are members of these types of organizations. These help in setting the international agenda. Thus, we are providing a list of International Organizations and their Headquarters so that you can memorize them which will help you in cracking the competitive examinations.
This is the list of International Organizations and their Headquarters
| Name of the Organization | Headquarter | Formation Year |
| United Nations (UN) | New York City | 1945 |
| United Nations Population Fund (UNFPA) | New York City | 1969 |
| United Nations Children’s’ Fund (UNICEF) | New York City | 1946 |
| United Nations Conference on Trade and Development (UNCTAD) | Geneva | 1964 |
| International Labor Organization (ILO) | Geneva | 1919 |
| World Health Organization (WHO) | Geneva | 1948 |
| International Committee of the Red Cross (ICRC) | Geneva | 1863 |
| International Civil Aviation Organization (ICAO) | Montreal, Quebec | 1947 |
| World Meteorological Organization (WMO) | Geneva | 1950 |
| World Trade Organization (WTO) | Geneva | 1995 |
| World Intellectual Property Organization (WIPO) | Geneva | 1967 |
| International Maritime Organization (IMO) | London | 1959 |
| International Organization for Standardization (ISO) | Geneva | 1947 |
| United Nations Educational Scientific and Cultural Organization (UNESCO) | Paris | 1945 |
| UN Women (UW) | New York | 2010 |
| United Nations High Commissioner for Refugees (UNHCR) | Geneva | 1950 |
| Organization for Economic Cooperation and Development (OECD) | Paris | 1961 |
| Joint United Nations Programme on HIV/AIDS (UNAIDS) | Geneva | 1996 |
| United Nations Industrial Development Organization (UNIDO) | Vienna | 1966 |
| United Nations Atomic Energy Commission (UNAEC) | New York City | 1946 |
| International Atomic Energy Agency (IAEA) | Vienna | 1957 |
| United Nations Capital Development Fund (UNCDF) | New York City | 1966 |
| Organization of Petroleum Exporting Countries (OPEC) | Vienna | 1960 |
| United Nations Environment Programme (UNEP) | Nairobi | 1972 |
| United Nations Human Settlements Programme (UN-Habitat) | Nairobi | 1978 |
| United Nations International Strategy for Disaster Reduction (UNISDR) | Geneva | 2000 |
| Amnesty International (AI) | London | 1961 |
| United Nations Office on Drugs and Crime (UNODC) | Vienna | 1997 |
| Universal Postal Union (UPU) | Bern | 1874 |
| Commonwealth of Nations (CWN) | London | 1926 |
| World Food Programme (WFP) | Rome | 1961 |
| International Court of Justice (ICJ) | The Hague | 1945 |
| Universal Postal Union (UPU) | Berne | 1874 |
| World Tourism Organization (UNWTO) | Madrid | 1957 |
| Food and Agricultural Organization (FAO) | Rome | 1945 |
| North Atlantic Treaty Organization International Rescue Committee (IRC) | New York City | 1933 |
| International Telecommunication Union (ITU) | Geneva | 1947 |
| International Atomic Energy Agency (IAEA) | Vienna | 1957 |
| European Union (EU) | Brussels | 1958 |
| Office of the High Commissioner for Human Rights (OHCHR) | Geneva | 1993 |
| African Union (AU) | Addis Ababa | 2001 |
| African, Caribbean and Pacific Group of States (ACP) | Brussels | 1975 |
| Andean Community (CAN) | Lima | 1969 |
| League of Arab States (Arab League) | Cairo | 1945 |
| Asia-Pacific Economic Cooperation (APEC) | Singapore | 1989 |
| Arab Maghreb Union (AMU) | Rabat | 1956 |
| Association of Southeast Asian Nations (ASEAN) | Jakarta | 1967 |
| Central American Parliament (PARLACEN) | Guatemala City | 1980 |
| Commonwealth of Nations (British Commonwealth) | London | 1926 |
| Common Market of East and Southern Africa (COMESA) | Lusaka | 1994 |
| Council of Europe (CoE) | Strasbourg | 1949 |
| Commonwealth of Independent States (Russian Commonwealth) (CIS) | Moscow | 1991 |
| East African Community (EAC) | Arusha | 1967 |
| European Free Trade Association (EFTA) | Geneva | 1960 |
| Indian Ocean Commission (IOC) | Port Louis, Mauritius | 1982 |
| Economic Community of West African States (ECOWAS) | Abuja, Nigeria | 1975 |
| Gulf Cooperation Council (GCC) | Riyadh | 1981 |
| Organization for Economic Co-operation and Development (OECD) | Paris | 1948 |
| Organization of American States (OAS) | Washington D.C. | 1948 |
| Organization for Security and Co-operation in Europe (OSCE) | Vienna | 1973 |
| Organization of Islamic Cooperation (OIC) | Jeddah | 1969 |
| South Asian Association for Regional Cooperation (SAARC) | Kathmandu | 1985 |
| Secretariat of the Pacific Community (SPC) | Nouméa | 1947 |
| Union of South American Nations (USAN) | Quito | 2004 |
| Southern African Development Community (SADC) | Gaborone | 1992 |
| Antarctic Treaty System (ATS) | Washington D.C. | 1959 |
| International Committee of the Red Cross (ICRC) | Geneva | 1863 |
| Intergovernmental Authority on Development (IGAD) | Djibouti City | 1986 |
| International Criminal Court (ICC) | The Hague | 1998 |
| International Federation of Red Cross and Red Crescent Societies (IFRC) | Geneva | 1919 |
| International Criminal Police Organization (INTERPOL) | Lyon | 1923 |
| International Centre for Migration Policy Development (ICMPD) | Vienna | 1993 |
| International Organization for Migration (IOM) | Geneva | 1951 |
| World Toilet Organization (WTO) | Singapore | 2001 |
| Organization for the Prohibition of Chemical Weapons (OPCW) | The Hague | 1997 |
| Organization of the Petroleum Exporting Countries (OPEC) | Vienna | 1960 |
Financial Organizations
| Name of the Organization | Headquarter | Formation Year |
| African Development Bank (AfDB) | Abidjan, Ivory Coast(statutory) and Tunis, Tunisia (temporary) | 1963 |
| World Bank (WB) | Washington D.C. | 1944 |
| European Bank for Reconstruction and Development (EBRD) | London | 1991 |
| Asian Development Bank (ADB) | Metro Manila | 1966 |
| International Monetary Fund (IMF) | Washington, D.C. | 1945 |
| Inter-American Development Bank (IDB) | Washington, D.C. | 1959 |
| International Fund for Agricultural Development (IFAD) | Rome | 1977 |
| Islamic Development Bank (IDB) | Jeddah | 1973 |
| Black Sea Trade and Development Bank (BSTDB) | Thessaloniki | 1997 |
| Bank for International Settlements (BIS) | Basel | 1930 |
| Caribbean Development Bank (CDB) | Bridgetown | 1969 |
| Black Sea Trade and Development Bank (BSTDB) | Thessaloniki | 1997 |
| Nordic Investment Bank (NIB) | Helsinki | 1970 |
| European Central Bank (ECB) | Frankfurt | 1998 |
Military Organizations
| Name of the Organization | Headquarter | Formation Year |
| Common Security and Defence Policy (CSDP) | Brussels | 2009 |
| Collective Security Treaty Organization (CSTO) | Moscow | 1992 |
| Shanghai Cooperation Organisation (SCO) | Beijing | 1996 |
| Peace and Security Council (PSC) | Addis Ababa | g |
Sports Federations
| Name of the Organization | Headquarter | Formation Year |
| International Federation of Association Football(Fédération Internationale de Football Association) (FIFA) | Zürich | 1904 |
| World Chess Federation(Fédération Internationale des Échecs ) (FIFA) | Athens | 1924 |
| Oceania Football Confederation (OFC) | Auckland | 1916 |
| South American Football Confederation (CONMEBOL) | Luque | 1966 |
| Union of European Football Associations (UEFA) | Nyon | 1966 |
| International Olympic Committee (IOC) | Lausanne | 1894 |
| International Cricket Council (ICC) | Dubai | 1909 |
| World Rugby(International Rugby Football Board) (IRFB) | Dublin | 1886 |
| Commonwealth Games Federation (CGF) | London | 1930 |
| International Paralympic Committee (IPC) | Bonn | 1989 |
| International Hockey Federation (IHF) | Lausanne | 1924 |
| Badminton World Federation (BWF) | Kuala Lumpur | 1934 |
| International Tennis Federation (ITF) | London | 1913 |