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All over the world, เสียม (Siam , เสียม , Siemuang ) is a common mostly male, but seldom female given name. The forename เสียม is habitual in Bangladesh, where it is quite a rare principally masculine, but scarcely girly name, Oman, where it is quite a rare mostly masculine, but uncommonly feminine name, and Bahrain, where it is quite a rare masculine name. Not in comparison with a country's population, it is the most numerous in Bangladesh, Indonesia, and Pakistan. Also, เสียม is the last name as well as the forename.
เสียม is also a name for the fictitious and mythical characters: .
ไชพนัส, แซตัน, ชุมภู, มาลัย, ขุนทอง, วงศ์ดี, เนียนสันเทียะ, and เพ็งทองหลาง