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Last name Jae-Hyun (재현 , Jae-Hyun ) , around the world, is an extremely rare cognomen. The surname Jae-Hyun is characteristic of Northern America, particularly the United States, where it is an extremely rare surname. Much more prevalently, Jae-Hyun is the forename as well as the last name. Parts of the name also exists independently as a first name Jae, and a last name Hyun.