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Worldwide, Tiam (Tiam , เตียม , เตี้ย) is a rare unisex given name. The first name Tiam is habitual in Thailand, where it is a rare gender-neutral name, Syria, where it is a rare boy's name, and Egypt. In absolute terms, the name is most common in Thailand, Egypt, and Indonesia. More frequently, Tiam is the last name as well as the forename.