Cognomen Arenas Acosta (Arenas Acosta 
) , in the world, is a very rare family name. The last name Arenas Acosta is characteristic of Chile, where it is a very rare surname, Spain, and Peru, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Arenas Acosta | Spain, Chile, Peru |
Sergio, and Jose Efren