Family name Peñafiel Guanoluisa (Peñafiel Guanoluisa 
) , in the world, is a very rare last name. The cognomen Peñafiel Guanoluisa is habitual in Ecuador, where it is a very rare surname, and Spain, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Peñafiel Guanoluisa | Ecuador, Spain |