Cognomen ស៊ីឡៃ (ស៊ីឡៃ 
) , all over the world, is a very rare family name. The family name ស៊ីឡៃ is characteristic of South-eastern Asia, particularly Cambodia, where it is a very rare surname. More frequently, ស៊ីឡៃ is the forename as well as the last name.