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Cognomen 幹 (Kimura , 幹 ) , across the world, is a common last name. The surname 幹 is habitual in Jersey, where it is quite a common surname, Hong Kong, where it is quite a rare surname, and Japan. Measured by absolute frequency, this name is the most popular in Brazil, Japan, and the United States. Much less frequently, 幹 is the forename as well as the last name.