Cognomen Barrientos Llanos (Barrientos Llanos 
) , all over the world, is a very rare family name. The last name Barrientos Llanos is habitual in Latin America and the Caribbean, particularly Bolivia, where it is a rare surname, and Chile, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Barrientos Llanos | Bolivia, Chile |