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In the entire world, 金井 (Kanai , 金井 , Канаи ) is a widespread masculine first name. The given name 金井 is habitual in India, where it is quite a common masculine name, Bahrain, where it is quite a rare masculine name, and Qatar. Not in comparison with a country's population, the name is most common in India, Bangladesh, and China. Much less frequently, 金井 is the last name as well as the forename.
金井 is also a name for the fictitious and mythical characters: .