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Surname Schupbach (Schupbach ) , around the globe, is quite a rare cognomen. The family name Schupbach is characteristic of Switzerland, where it is quite a common surname, the United States, where it is a rare surname, and New Zealand. Not in comparison with a country's population, it most frequently occurs in Switzerland, the United States, and Germany. Very seldom, Schupbach is the forename as well as the last name.