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Cognomen 嘉伦 (嘉伦 , Jialun , Jia Lun ) , across the world, is quite a rare family name. The cognomen 嘉伦 is habitual in China, where it is a rare surname, Singapore, where it is a very rare surname, and Malaysia. More frequently, 嘉伦 is the forename as well as the last name.