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.