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Cognomen Rusch (روش , ラッシュ , Rusch ) , in the entire world, is a common surname. The surname Rusch is characteristic of Western Europe, particularly Liechtenstein, where it is quite a common surname, Switzerland, and Austria, where it is quite a rare surname. In absolute terms, it most frequently occurs in Egypt, Germany, and the United States. Very seldom, Rusch is the forename as well as the last name.