Family name พรหมทัตย์ (พรหมทัตย์ 
) , in the world, is a very rare surname. The surname พรหมทัตย์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Very seldom, พรหมทัตย์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| พรหมทัตย์ | Thailand |