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Surname ツカサ (Tsukasa , ツカサ , Tukasa ) , worldwide, is a common family name. The cognomen ツカサ is habitual in Eastern Asia, particularly Japan, where it is quite a common surname, Taiwan, where it is a rare surname, and Hong Kong. In absolute terms, this name is the most popular in Japan, Indonesia, and China. Very seldom, ツカサ is the forename as well as the last name.