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Cognomen 智弘 (Zhihong , Tomohiro , 智弘 ) , worldwide, is quite a rare surname. The cognomen 智弘 is habitual in Vanuatu, where it is quite a common surname, Singapore, where it is quite a rare surname, and Japan, where it is a rare surname. Measured by absolute frequency, it most frequently occurs in China, Japan, and Vanuatu. Predominantly, 智弘 is the forename as well as the last name.