Cognomen สุมาลย์มาศ (สุมาลย์มาศ 
) , around the globe, is a very rare family name. The last name สุมาลย์มาศ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Likewise, สุมาลย์มาศ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| สุมาลย์มาศ | Thailand |