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Surname Klop (Klop ) , around the globe, is quite a rare last name. The cognomen Klop is habitual in Western Europe, particularly Netherlands, where it is quite a common surname, Luxembourg, where it is quite a rare surname, and Belgium, where it is a rare surname. Measured by absolute frequency, the name is most common in Netherlands, Indonesia, and the United States. Very seldom, Klop is the forename as well as the last name.