Throughout the world, ทุมมาศ (Tumasa 
, ทุมมาศ 
) is a very rare dominantly feminine, but infrequently boy's forename. The first name ทุมมาศ is habitual in Philippines, where it is a very rare female name, and India, where it is an extremely rare gender-neutral name. Likewise, ทุมมาศ is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Tumasa | Peru, South Africa, Philippines, Brazil, India |
| ทุมมาศ | Thailand |