This article contains a list of flags of international organizations.

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  Flag of the Commonwealth of Nations
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  Flag of the Community of Portuguese Language Countries
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  Flag of the International Criminal Court
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  Flag of the Organisation internationale de la Francophonie
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  Flag of the Organisation of Islamic Cooperation
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  Flag of the Permanent Court of Arbitration
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  Flag of the United Nations
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  Flag of UNESCO
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  Flag of the World Trade Organization

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  Flag of the Organisation of African, Caribbean and Pacific States
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  Flag of the Arab League
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  Flag of the Collective Security Treaty Organization
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  Flag of the Commonwealth of Independent States
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  Flag of the Eurasian Economic Union
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  Flag of the North Atlantic Treaty Organization (NATO)
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  Flag of the Organization for Security and Co-operation in Europe
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  Flag of the South Atlantic Peace and Cooperation Zone
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  Flag of the Union for the Mediterranean

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  Flag of the African Union
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  Flag of the East African Community
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  Flag of the Southern African Development Community

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  Flag of the Andean Community
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  Flag of the Association of Caribbean States
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  Flag of the Central American Integration System
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  Flag of the Caribbean Community
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  Flag of the Community of Latin American and Caribbean States
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  Flag of the Latin American Parliament
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  Flag of Mercosur
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  Flag of the Organization of American States
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  Flag of the Union of South American Nations

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  Flag of the Gulf Cooperation Council
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  Flag of the International Organization of Turkic Culture (TÜRKSOY)
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  Flag of the Organization of Turkic States

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  Flag of Benelux
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  Flag of the Central European Free Trade Agreement
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  Flag of the Council of Europe
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  Flag of the European Free Trade Association
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  Flag of the European Political Community
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  Flag of the European Union
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  Flag of the Nordic Council

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  Flag of the Pacific Community

Multi-sport

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  Flag of the International Military Sports Council
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  Flag of the International Olympic Committee
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  Flag of the International Paralympic Committee
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  Flag of the International University Sports Federation
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  Flag of the International World Games Association

Single sport

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  Flag of FIFA

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  Flag of the Commonwealth Games Federation
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  Flag of the Jeux de la Francophonie

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  Flag of the Association of National Olympic Committees of Africa (African Games)
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  Flag of the Olympic Council of Asia (Asian Games)
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  Flag of the European Olympic Committees (European Games)
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  Flag of the Oceania National Olympic Committees (Pacific Games)
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  Flag of the Pan American Sports Organization (Pan American Games)

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  Flag of the Mediterranean Games

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  Flag of the Organisation of African Unity
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  Flag of the Central Treaty Organization
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  Flag of the European Coal and Steel Community
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  Flag of the League of Nations
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  Flag of the Southeast Asia Treaty Organization (SEATO)
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  Flag of the Western European Union
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  Flag of the Western Union

• Flag of Earth
• Anthems of international organizations