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Around the world, Nayun (Nayun , 나윤 ) is a rare largely female, but seldom male first name. The first name Nayun is characteristic of South Korea, where it is a rare girly name, Saudi Arabia, where it is a rare male name, and India, where it is an extremely rare epicene name. Much less frequently, Nayun is the last name as well as the forename.