Last name Fierro Aravena (Fierro Aravena 
) , worldwide, is a very rare cognomen. The last name Fierro Aravena is habitual in Latin America and the Caribbean, particularly Chile, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Fierro Aravena | Chile |
Ercira Lucia, Bernardo Ivan, Gloria Valentina, and Enriqueta Soledad