Throughout the world, ស៊ីរ៉ូ (ស៊ីរ៉ូ 
) is a very rare epicene first name. The first name ស៊ីរ៉ូ is habitual in South-eastern Asia, particularly Cambodia, where it is a rare epicene name. Very seldom, ស៊ីរ៉ូ is the last name as well as the forename.