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Cognomen 石毛 (Ishige , 石毛 ) , around the globe, is a rare surname. The cognomen 石毛 is habitual in Hungary, where it is a rare surname, Singapore, where it is a very rare surname, and Thailand. Measured by absolute frequency, this name is the most popular in Japan, Thailand, and the United States. Likewise, 石毛 is the forename as well as the last name.