Family name Castillo Neyra (Castillo Neyra 
) , in the entire world, is a very rare cognomen. The surname Castillo Neyra is habitual in Latin America and the Caribbean, particularly Chile, where it is a very rare surname, and Peru.
| VARIANT | COUNTRY |
|---|---|
| Castillo Neyra | Peru, Chile |
Mao, Jose, Carmen, Daniel, Deldercito, Fiorella, Jaime Daniel, and Cristian Oswaldo