In all the world, ស៊ីម៉ូ (ស៊ីម៉ូ 
) is a very rare unisex first name. The forename ស៊ីម៉ូ is characteristic of South-eastern Asia, particularly Cambodia, where it is a rare gender-neutral name. Much less frequently, ស៊ីម៉ូ is the last name as well as the forename.