French is an official language in 29 countries, most of which are members of the Organisation internationale de la Francophonie (OIF), the community of 84 countries which share the official use or teaching of French. It is spoken as a first language (in descending order of the highest number) in France, the Canadian provinces of Quebec and New Brunswick, the regions of Wallonia and Brussels in Belgium, western Switzerland, Monaco, certain other regions of Canada and the United States (Louisiana and the northern parts of Maine, New Hampshire, and Vermont), and by various communities elsewhere. In 2015, approximately 40% of the francophone population (including L2 and partial speakers) lived in Europe, 35% in sub-Saharan Africa, 15% in North Africa and the Middle East, 8% in the Americas, and 1% in Asia and Oceania...
French is the third-most widely spoken mother tongue in the European Union, just behind English. Of Europeans who speak other languages natively, approximately one-fifth are able to speak French as a second language. French is the second most taught foreign language in the EU. As a result of French and Belgian colonialism from the 16th century onward, French was introduced to new territories in the Americas, Africa and Asia. Most second-language speakers reside in Francophone Africa, in particular Gabon, Algeria, Mauritius, Senegal and Ivory Coast. In 2015, French was estimated to have 190 million native speakers, and 77 to 110 million secondary speakers. Approximately 274 million people are able to speak the language. According to a demographic projection led by the Université Laval and the Réseau Démographie de l'Agence universitaire de la francophonie, total French speakers will number approximately 500 million people in 2025 and 650 million people by 2050. The Organisation internationale de la Francophonieestimates 700 million by 2050, 80% of whom will be in Africa.
French has a long history as an international language of literature and scientific standards and is a primary or second language of many international organisations including the United Nations, the European Union, the North Atlantic Treaty Organization, the World Trade Organization, the International Olympic Committee, and the International Committee of the Red Cross. In 2011, Bloomberg Businessweek ranked French the third most useful language for business, after English and Standard Mandarin Chinese.