Last name بلاس (Blas 
, Blass 
, Blaas 
) , all over the world, is a widespread surname. The family name بلاس is characteristic of Guam, where it is a widespread surname, Peru, where it is quite a common surname, and Nicaragua (explore the name in all countries). Not in comparison with a country's population, it is the most numerous in Mexico, Spain, and Peru. Also, بلاس is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Blas | Spain, Philippines, Paraguay, Mexico, Peru |
| Blass | Spain, Philippines, Mexico, Argentina, Peru |
| Blaas | Spain, Philippines, Mexico, United States, Argentina |
| بلاس | Saudi Arabia, Sudan, Syria, Egypt, Iraq |