Cognomen Castillo Barrantes (Castillo Barrantes 
) , all over the world, is an extremely rare surname. The last name Castillo Barrantes is characteristic of Latin America and the Caribbean, particularly Costa Rica, where it is a very rare surname, Ecuador, and Chile, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Castillo Barrantes | Ecuador, Chile, Costa Rica |