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All around the world, Khayan (Khayan , ขยัน , Хаян ) is a rare epicene given name. The forename Khayan is habitual in Thailand, where it is a rare epicene name, Indonesia, where it is a very rare masculine name, and Brazil, where it is a very rare principally masculine, but very seldom feminine name. Measured by absolute frequency, it is commonest in Thailand, India, and Indonesia. Likewise, Khayan is the last name as well as the forename.