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Family name Keuren (Keuren , 柯伦 ) , in all the world, is a rare surname. The surname Keuren is habitual in Western Europe, particularly Netherlands, where it is a rare surname, Belgium, and Switzerland, where it is a very rare surname. Not in comparison with a country's population, this name is the most popular in Netherlands, the United States, and Belgium. Likewise, Keuren is the forename as well as the last name.