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Family name Fontaine (Fontaine , 方丹 , فونتين, and others...) , globally, is a common cognomen. The last name Fontaine is habitual in Reunion, where it is a common surname, Dominica, and British Virgin Islands (explore the name in all countries). Not in comparison with a country's population, it is the most numerous in France, the United States, and Canada. Much less frequently, Fontaine is the forename as well as the last name.