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In the entire world, Kley (克利 , Kley , Клей ) is quite a common unisex forename. The first name Kley is habitual in Equatorial Guinea, where it is quite a common girly name, China, where it is a rare unisex name, and the Democratic Republic of the Congo, where it is a rare boy's name. Likewise, Kley is the last name as well as the forename.
Kley is also a name for the fictitious and mythical characters: .