Cognomen พรหมลาภ (พรหมลาภ 
, Virudlarp , Promlap 
) , in all the world, is a very rare last name. The cognomen พรหมลาภ is characteristic of Thailand, where it is a rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Promlarp, Virudlarp, พรหมลาภ | Thailand |
| Promlap | United States, Thailand |