Surname Penagos Castillo (Penagos Castillo 
) , all over the world, is an extremely rare family name. The cognomen Penagos Castillo is habitual in Latin America and the Caribbean, particularly Ecuador, where it is a very rare surname, and Chile, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Penagos Castillo | Ecuador, Chile |