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Family name マサヒロ (Masahiro , マサヒロ ) , worldwide, is a widespread cognomen. The cognomen マサヒロ is habitual in Japan, where it is quite a common surname, Taiwan, where it is quite a rare surname, and Singapore, where it is a rare surname. In absolute terms, it is the most numerous in Eastern Asia, particularly Japan, China, and Taiwan. Very seldom, マサヒロ is the forename as well as the last name.