Surname Troncoso Ibarra (Troncoso Ibarra 
) , all around the world, is a very rare last name. The last name Troncoso Ibarra is characteristic of Latin America and the Caribbean, particularly Chile, where it is a rare surname, and Ecuador, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Troncoso Ibarra | Ecuador, Chile |