Family name Montero Guijarro (Montero Guijarro 
) , all around the world, is a very rare last name. The family name Montero Guijarro is characteristic of Ecuador, where it is a rare surname, Spain, where it is a very rare surname, and Germany, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Montero Guijarro | Spain, Germany, Ecuador |