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Globally, 哲夫 (哲夫 , Tetsuo , Zhefu ) is quite a rare masculine first name. The forename 哲夫 is habitual in Japan, where it is a rare male name, China, and the United States, where it is a very rare male name. Likewise, 哲夫 is the last name as well as the forename.
哲夫 is also a name for the fictitious and mythical characters: Tetsuo Shima , the fictional character from Akira; Tetsuo Takahashi , the fictional character from Interviews with Monster Girls and Tetsuo Ishizu , the KochiKame characters, Kochira Katsushika-ku Kameari Kōen-mae Hashutsujo.