Family name Rosales Alarcon (Rosales Alarcon 
) , in all the world, is a very rare cognomen. The last name Rosales Alarcon is habitual in Chile, where it is a rare surname, Spain, where it is a very rare surname, and Peru, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Rosales Alarcon | Chile, Spain, Peru |
Sebastian, Jose Antonio, Nicolas Ignacio, and Walter Fabricio