Family name Peñafiel Astudillo (Peñafiel Astudillo 
) , in the world, is a very rare cognomen. The last name Peñafiel Astudillo is characteristic of Latin America and the Caribbean, particularly Ecuador, where it is a rare surname, and Chile, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Peñafiel Astudillo | Chile, Ecuador |