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Family name ヤスマサ (Yasumasa
, ヤスマサ
) , in the entire world, is quite a common surname. The surname ヤスマサ is characteristic of Japan, where it is quite a rare surname, Hungary, where it is a rare surname, and China, where it is an extremely rare surname. Much less frequently, ヤスマサ is the forename as well as the last name.