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Family name Yizhak (اسحاق , יצחק , Yizhak ) , around the globe, is a common surname. The cognomen Yizhak is habitual in Western Asia, particularly Israel, where it is quite a common surname, Yemen, and Palestinian Territory, where it is quite a rare surname. In absolute terms, it is commonest in Israel, Yemen, and Ukraine. More frequently, Yizhak is the forename as well as the last name.