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Surname Karst (Der , Karst , Carst ) , all over the world, is a common last name. The last name Karst is habitual in Netherlands, where it is quite a common surname, Hungary, and Algeria (explore the name in all countries). Not in comparison with a country's population, it is the most numerous in Algeria, Netherlands, and Myanmar. Much less frequently, Karst is the forename as well as the last name.