Surname คูณมาศ (คูณมาศ 
) , globally, is an extremely rare cognomen. The family name คูณมาศ is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Also, คูณมาศ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| คูณมาศ | Thailand |