Surname พรหมไธสง (พรหมไธสง 
, Promthaisong ) , all around the world, is a very rare last name. The surname พรหมไธสง is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Promthaisong, พรหมไธสง | Thailand |