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Last name Kirch (Kirch , Кирх , Кирш ) , across the world, is quite a common surname. The surname Kirch is habitual in Luxembourg, where it is quite a common surname, Germany, where it is quite a rare surname, and Estonia. In absolute terms, this name is the most popular in Germany, the United States, and Brazil. Very seldom, Kirch is the forename as well as the last name.