Cognomen Perez Barreiro (Perez Barreiro 
) , in all the world, is a rare family name. The family name Perez Barreiro is characteristic of Cuba, where it is a rare surname, Spain, and Uruguay. Measured by absolute frequency, it most frequently occurs in Spain, Cuba, and the Dominican Republic.
| VARIANT | COUNTRY |
|---|---|
| Perez Barreiro | Ecuador, Dominican Republic, Spain, Cuba, Uruguay |