Cognomen Contreras Tirado (Contreras Tirado 
) , in the world, is a very rare family name. The surname Contreras Tirado is characteristic of Chile, where it is a rare surname, and Spain, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Contreras Tirado | Chile, Spain |
Juan, Milena, Francisco, Pamela Leticia, Lidia Zunilda, and Francisco Javier