- United Nations (UN): Established in 1945, headquartered in New York City, USA, 193 members, languages: Arabic, Chinese, English, French, Russian, Spanish.
- World Health Organization (WHO): Established in 1948, headquartered in Geneva, Switzerland, 194 members, languages: Arabic, Chinese, English, French, Russian, Spanish.
- World Bank: Established in 1944, headquartered in Washington, D.C., USA, 189 members, language: English.
- International Monetary Fund (IMF): Established in 1944, headquartered in Washington, D.C., USA, 190 members, language: English.
- World Trade Organization (WTO): Established in 1995, headquartered in Geneva, Switzerland, 164 members, languages: English, French, Spanish.
- European Union (EU): Established in 1993, headquartered in Brussels, Belgium, 27 members, 24 official languages.
- African Union (AU): Established in 2001, headquartered in Addis Ababa, Ethiopia, 55 members, languages: Arabic, English, French, Portuguese, Spanish, Kiswahili, others.
- Association of Southeast Asian Nations (ASEAN): Established in 1967, headquartered in Jakarta, Indonesia, 10 members, language: English.
- Organisation of Islamic Cooperation (OIC): Established in 1969, headquartered in Jeddah, Saudi Arabia, 57 members, languages: Arabic, English, French.
- Shanghai Cooperation Organization (SCO): Established in 2001, headquartered in Beijing, China, 9 members, languages: Chinese, Russian.
- NATO (North Atlantic Treaty Organization): Established in 1949, headquartered in Brussels, Belgium, 31 members, languages: English, French.
- Commonwealth of Nations: Established in 1931, headquartered in London, United Kingdom, 56 members, language: English.
- Organisation for Economic Co-operation and Development (OECD): Established in 1961, headquartered in Paris, France, 38 members, languages: English, French.
- Gulf Cooperation Council (GCC): Established in 1981, headquartered in Riyadh, Saudi Arabia, 6 members, language: Arabic.
- Interpol: Established in 1923, headquartered in Lyon, France, 195 members, languages: Arabic, English, French, Spanish.
- Arab League: Established in 1945, headquartered in Cairo, Egypt, 22 members, language: Arabic.
- Caribbean Community (CARICOM): Established in 1973, headquartered in Georgetown, Guyana, 15 members, languages: English, Dutch, French.
- Pacific Islands Forum: Established in 1971, headquartered in Suva, Fiji, 18 members, languages: English, French.
- Economic Community of West African States (ECOWAS): Established in 1975, headquartered in Abuja, Nigeria, 15 members, languages: English, French, Portuguese.
- South Asian Association for Regional Cooperation (SAARC): Established in 1985, headquartered in Kathmandu, Nepal, 8 members, language: English.
- International Atomic Energy Agency (IAEA): Established in 1957, headquartered in Vienna, Austria, 177 members, languages: Arabic, Chinese, English, French, Russian, Spanish.
- International Criminal Court (ICC): Established in 2002, headquartered in The Hague, Netherlands, 123 members, languages: English, French.
- World Meteorological Organization (WMO): Established in 1950, headquartered in Geneva, Switzerland, 193 members, languages: Arabic, Chinese, English, French, Russian, Spanish.
- World Intellectual Property Organization (WIPO): Established in 1967, headquartered in Geneva, Switzerland, 193 members, languages: Arabic, Chinese, English, French, Russian, Spanish.
- International Labour Organization (ILO): Established in 1919, headquartered in Geneva, Switzerland, 187 members, languages: English, French, Spanish.
- International Maritime Organization (IMO): Established in 1948, headquartered in London, United Kingdom, 175 members, languages: Arabic, Chinese, English, French, Russian, Spanish.
- Organisation of the Petroleum Exporting Countries (OPEC): Established in 1960, headquartered in Vienna, Austria, 13 members, language: English.
- International Telecommunication Union (ITU): Established in 1865, headquartered in Geneva, Switzerland, 193 members, languages: Arabic, Chinese, English, French, Russian, Spanish.
- Food and Agriculture Organization (FAO): Established in 1945, headquartered in Rome, Italy, 195 members, languages: Arabic, Chinese, English, French, Russian, Spanish.
- United Nations Educational, Scientific and Cultural Organization (UNESCO): Established in 1945, headquartered in Paris, France, 193 members, languages: Arabic, Chinese, English, French, Russian, Spanish.
- World Wildlife Fund (WWF): Established in 1961, headquartered in Gland, Switzerland, operates in over 100 countries, languages vary by region.
32. World Tourism Organization (UNWTO): Established in 1975, headquartered in Madrid, Spain, 159 members, languages: Arabic, Chinese, English, French, Russian, Spanish.
