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Last name Zat (Zat , زات , 扎特 ) , in the entire world, is a common cognomen. The cognomen Zat is characteristic of Myanmar, where it is quite a common surname, Algeria, where it is a rare surname, and Malaysia. Measured by absolute frequency, it is commonest in Myanmar, Brazil, and Algeria. Very seldom, Zat is the forename as well as the last name.