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Worldwide, 治 (治 , Osamu ) is a common primarily masculine, but very seldom feminine given name. The first name 治 is habitual in China, where it is quite a rare principally boy's, but very seldom girly name, Japan, where it is quite a rare masculine name, and Tanzania, where it is a rare boy's name. Not in comparison with a country's population, it is commonest in China, Japan, and Nigeria. Very seldom, 治 is the last name as well as the forename.
治 is also a name for the fictitious and mythical characters: Osamu Dazai , the Fictional character from Bungo Stray Dogs and Osamu Yamanami .