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Family name タツヤ (Tatsuya
, タツヤ
, Tatuya
) , around the globe, is a widespread surname. The cognomen タツヤ is characteristic of Japan, where it is quite a common surname, Singapore, where it is a rare surname, and Taiwan. In absolute terms, it is the most numerous in Japan, China, and Indonesia. Very seldom, タツヤ is the forename as well as the last name.