Family name จันทร์มาศ (จันทร์มาศ 
) , in the world, is a rare surname. The surname จันทร์มาศ is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Much less frequently, จันทร์มาศ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| จันทร์มาศ | Thailand |