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Throughout the world, 克 (克 , Katsu , Ker ) is a widespread largely boy's, but uncommonly girly first name. The first name 克 is characteristic of China, where it is quite a rare predominantly masculine, but scarcely feminine name, Singapore, where it is a rare unisex name, and Algeria. Not in comparison with a country's population, it most frequently occurs in China, India, and Nigeria. Likewise, 克 is the last name as well as the forename.
克 is also a name for the fictitious and mythical characters: Ker , the operatic character in the opera The Minotaur by Harrison Birtwistle.