Family name Dueñas Valencia (Dueñas Valencia 
) , all over the world, is a very rare surname. The last name Dueñas Valencia is characteristic of Ecuador, where it is a rare surname, Colombia, where it is a very rare surname, and Spain, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Dueñas Valencia | Spain, Colombia, Ecuador |