Surname Montoya Troncoso (Montoya Troncoso 
) , globally, is a very rare last name. The last name Montoya Troncoso is habitual in Latin America and the Caribbean, particularly Ecuador, where it is a very rare surname, and Chile.
| VARIANT | COUNTRY |
|---|---|
| Montoya Troncoso | Chile, Ecuador |
Maria, and Karina Liseth