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Last name 悟 (悟 , Satoru , Wù ) , across the world, is a common family name. The cognomen 悟 is habitual in Japan, where it is quite a rare surname, China, and Hungary, where it is a rare surname. In absolute terms, it is the most numerous in China, Japan, and Indonesia. Likewise, 悟 is the forename as well as the last name.