Cognomen ស៊ីណាស់ (ស៊ីណាស់ 
) , around the world, is an extremely rare family name. The family name ស៊ីណាស់ is habitual in South-eastern Asia, particularly Cambodia, where it is a very rare surname. Much more frequently, ស៊ីណាស់ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ស៊ីណាស់ | Cambodia |