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Family name Stuven (Stuven ) , throughout the world, is a rare last name. The last name Stuven is habitual in Latin America and the Caribbean, particularly Paraguay, where it is quite a rare surname, Chile, where it is a rare surname, and Argentina, where it is a very rare surname. In absolute terms, the name is most common in Chile, Paraguay, and the United States. Much less frequently, Stuven is the forename as well as the last name.