Cognomen Holguin Contreras (Holguin Contreras 
) , in the world, is a very rare last name. The family name Holguin Contreras is habitual in Ecuador, where it is a rare surname, and Spain, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Holguin Contreras | Spain, Ecuador |
Luis, and Anavictoria