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Cognomen Trung (Trung , Чунг , チュン ) , all around the world, is a common surname. The cognomen Trung is habitual in Vietnam, where it is quite a common surname, Malaysia, where it is quite a rare surname, and Macao. Measured by absolute frequency, this name is the most popular in Vietnam, Malaysia, and China. Also, Trung is the forename as well as the last name.