The following tables list the international organizations which may be invited to attend suitable ICAO meetings. Officially, ICAO does not classify these as ‘observers’.
| UNITED NATIONS |
|---|
| Programmes |
| Office of the United Nations Disaster Relief Co-ordinator (UNDRO) |
| Office of the United Nations High Commissioner for Refugees (UNHCR) |
| United Nations Children's Fund (UNICEF) |
| United Nations Conference on Trade and Development (UNCTAD) |
| United Nations Development Programme (UNDP) |
| United Nations Environment Programme (UNEP) |
| United Nations Institute for Training and Research (UNITAR) |
| United Nations Relief and Works Agency for Palestine Refugees in the Near East (UNRWA) |
| United Nations University (UNU) |
| World Food Programme (WFP) |
| Regional Economic Commissions |
| Economic and Social Commission for Asia and the Pacific (ESCAP) |
| Economic and Social Commission for Western Asia (ESCWA) |
| Economic Commission for Africa (ECA) |
| Economic Commission for Europe (ECE) |
| Economic Commission for Latin America and the Caribbean (ECLAC) |
| Specialized Agencies |
| Food and Agriculture Organization of the United Nations (FAO) |
| International Fund for Agricultural Development (IFAD) |
| International Labour Organisation (ILO) |
| International Maritime Organization (IMO) |
| International Monetary Fund (IMF) |
| International Telecommunication Union (ITU) |
| United Nations Educational, Scientific and Cultural Organization (UNESCO) |
| United Nations Industrial Development Organization (UNIDO) |
| Universal Postal Union (UPU) |
| World Bank Group |
| World Health Organization (WHO) |
| World Intellectual Property Organization (WIPO) |
| World Meteorological Organization (WMO) |
| World Tourism Organization (UNWTO) |
| OTHER INTERGOVERNMENTAL ORGANIZATIONS |
|---|
| African Civil Aviation Commission (AFCAC) |
| African Union (AU) |
| Agency for Air Navigation Safety in Africa and Madagascar (ASECNA) |
| Arab Civil Aviation Organization (ACAO) |
| Banjul Accord Group Accident Investigation Agency (BAGAIA) |
| Central American Corporation for Air Navigation Services (COCESNA) |
| Council of Europe (CE) |
| European Civil Aviation Conference (ECAC) |
| European Union (EU) |
| European Organisation for the Safety of Air Navigation (EUROCONTROL) |
| European Space Agency (ESA) |
| International Atomic Energy Agency (IAEA) |
| International Criminal Police Organization (ICPO-INTERPOL) |
| International Hydrographic Organization (IHO) |
| International Institute for the Unification of Private Law (UNIDROIT) |
| International Satellite System for Search and Rescue (International Cospas-Sarsat Programme) |
| Interstate Aviation Committee (IAC) |
| Joint Aviation Authorities – Training Organisation (JAA-TO) |
| Latin American Civil Aviation Commission (LACAC) |
| League of Arab States (LAS) |
| Organization of American States (OAS) |
| Pacific Islands Forum |
| Pan American Institute of Geography and History (PAIGH) |
| Sistema de la Integración Centroamericana (SICA) |
| World Customs Organization (WCO) |
| World Trade Organization (WTO) |
| NON-GOVERNMENTAL ORGANIZATIONS |
|---|
| Aeronautical Radio Inc. (ARINC) |
| Aerospace Medical Association (AsMA) |
| Air Crash Victims' Families' Federation International (ACVFFI) |
| Air Transport Action Group (ATAG) |
| Air Transport Research Society (ATRS) |
| Airport Services Association (ASA) |
| Airports Council International (ACI) |
| Aviation Working Group (AWG) |
| Civil Air Navigation Services Organisation (CANSO) |
| European Organisation for Civil Aviation Equipment (EUROCAE) |
| Flight Safety Foundation (FSF) |
| Global Express Association (GEA) |
| Institute of International Law (IDI) |
| Inter-American Statistical Institute (IASI) |
| International Academy of Aviation and Space Medicine (IAASM) |
| International Aeronautical Federation (FAI) |
| International Air Transport Association (IATA) |
| International Association for the Physical Sciences of the Ocean (IAPSO) |
| International Association of Aircraft Brokers and Agents (IABA) |
| International Association of Institutes of Navigation (IAIN) |
| International Business Aviation Council (IBAC) |
| International Chamber of Commerce (ICC) |
| International Commission on Illumination (CIE) |
| International Committee for Airspace Standards and Calibration (ICASC) |
| International Coordinating Council of Aerospace Industries Associations (ICCAIA) |
| International Council of Aircraft Owner and Pilot Associations (IAOPA) |
| International Federation of Aeronautical Information Management Associations (IFAIMA) |
| International Federation of Airline Dispatchers' Associations (IFALDA) |
| International Federation of Air Line Pilots' Associations (IFALPA) |
| International Federation of Air Traffic Controllers' Associations (IFATCA) |
| International Federation of Air Traffic Safety Electronics Associations (IFATSEA) |
| International Forum for Aviation Research (IFAR) |
| International Geographic Union (IGU) |
| International Law Association (ILA) |
| International Maritime Radio Committee (CIRM) |
| International Organization for Standardization (ISO) |
| International Society of Air Safety Investigators (ISASI) |
| International Statistical Institute (ISI) |
| International Transport Workers' Federation (ITF) |
| International Union of Aerospace Insurers (IUAI) |
| International Union of Geodesy and Geophysics (IUGG) |
| International Union of Railways (UIC) |
| Organization of the Petroleum Exporting Countries (OPEC) |
| Royal Aeronautical Society (RAeS) |
| RTCA, Inc. |
| Société internationale de télécommunications aéronautiques (SITA) |
| Society of Automotive Engineers (SAE) International |
| The International Air Cargo Association (TIACA) |
| Vertical Aviation International (VAI) |
| World Wide Airport Coordinators Group (WWACG) |