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Surname Canh (Canh , カイン , Цанх ) , globally, is quite a rare cognomen. The surname Canh is habitual in Gabon, where it is quite a common surname, Macao, where it is quite a rare surname, and Vietnam. In absolute terms, it is the most numerous in Vietnam, Malaysia, and Gabon. More frequently, Canh is the forename as well as the last name.