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In all the world, ナオトシ (ナオトシ ) is an extremely rare unknown gender first name. Much more prevalently, ナオトシ is the last name as well as the forename.
Naotoshi, 尚俊, 尚敏, 直俊, 直利, and 直敏
ササキ, モリタ, フクムラ, ニシジマ, and ニシムラ