Cognomen Castillo Peña (Castillo Peña 
) , worldwide, is a rare last name. The surname Castillo Peña is habitual in Latin America and the Caribbean, particularly the Dominican Republic, where it is quite a rare surname, Ecuador, and Chile, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Castillo Peña | Guatemala, Spain, Chile, Dominican Republic, Ecuador |
Ana, Manuel, Miguel, Santos, Sandra, Soraya, Andrea, Amaury, Carmen, Camilo, Daniel, Gloria, Jesús, Julian, Felipe, Israel, Itseli, Ofelia, Wilson, Wilmer, Yisela, Mariela, Marcos, Martin, Felix, Edith, Jose, Juan, Jhon, Maria, Santi, Sandy, Cesar, Betsa, Bríi, Kenia, Marisol, Pablo, Pedro, Ramon, Randy, Rocio, David, Diego, Jaime, Jesus, Julia, Noemi, Paola, and Alfredo