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Surname Erlich (Erlich , Эрлих , ארליך ) , in the entire world, is quite a common family name. The last name Erlich is characteristic of Israel, where it is quite a common surname, Estonia, where it is quite a rare surname, and Kazakhstan. In absolute terms, it is the most numerous in Israel, Russia, and the United States. Much less frequently, Erlich is the forename as well as the last name.