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Last name Chis (Chis ) , throughout the world, is a common cognomen. The last name Chis is habitual in Romania, where it is quite a common surname, Barbados, where it is quite a rare surname, and Guatemala. Measured by absolute frequency, the name is most common in Romania, Pakistan, and the Democratic Republic of the Congo. Much less frequently, Chis is the forename as well as the last name.