Throughout the world, สียน (สียน ) is a very rare epicene forename. The forename สียน is habitual in South-eastern Asia, particularly Thailand, where it is a very rare unisex name.
อุทัย, and อุดมนา
) is a very rare epicene forename. The forename สียน is habitual in South-eastern Asia, particularly Thailand, where it is a very rare unisex name.