Surname Peñafiel Gorostiza (Peñafiel Gorostiza 
) , in all the world, is a very rare family name. The last name Peñafiel Gorostiza is characteristic of Ecuador, where it is a very rare surname, and Spain, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Peñafiel Gorostiza | Ecuador, Spain |