Cognomen សៃម៉ាស់ (សៃម៉ាស់ 
) , globally, is an extremely rare surname. The surname សៃម៉ាស់ is habitual in South-eastern Asia, particularly Cambodia, where it is a very rare surname. Predominantly, សៃម៉ាស់ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| សៃម៉ាស់ | Cambodia |