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Throughout the world, キレン (Killen , Quillen , キレン) is a rare unisex given name. The forename キレン is habitual in Sweden, where it is a rare masculine name, Argentina, where it is a very rare female name, and Tanzania, where it is a very rare boy's name. Measured by absolute frequency, it is commonest in Tanzania, Argentina, and the United States. Much more prevalently, キレン is the last name as well as the forename.
キレン is also a name for the fictitious and mythical characters: .