In the entire world, อุทุมมาศ (อุทุมมาศ 
) is a very rare mostly feminine, but infrequently boy's first name. The forename อุทุมมาศ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare unisex name.
| VARIANT | COUNTRY |
|---|---|
| อุทุมมาศ | Thailand |