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Family name Averbuch (Averbuch , אברבוך , אורבוך ) , all around the world, is quite a rare surname. The family name Averbuch is habitual in Israel, where it is quite a common surname, Czechia, where it is a rare surname, and France, where it is a very rare surname. Measured by absolute frequency, it is the most numerous in Israel, the United States, and Brazil.