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Throughout the world, แจ่มใส (Jamsai , Chamsai , Jaemsai ) is a very rare unisex first name. The given name แจ่มใส is habitual in Thailand, where it is a very rare feminine name, and India, where it is an extremely rare gender-neutral name. More frequently, แจ่มใส is the last name as well as the forename.