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In the entire world, イサオ (Isao , イサオ ) is quite a rare boy's given name. The given name イサオ is habitual in Japan, where it is quite a rare male name, Israel, where it is a rare principally male, but scarcely female name, and Canada, where it is a very rare male name. Not in comparison with a country's population, it most frequently occurs in Japan, China, and the United States. More frequently, イサオ is the last name as well as the forename.