Family name Villarreal Castillo (Villarreal Castillo 
) , in the entire world, is a very rare cognomen. The surname Villarreal Castillo is habitual in Latin America and the Caribbean, particularly Ecuador, where it is a rare surname, Chile, where it is a very rare surname, and Colombia.
| VARIANT | COUNTRY |
|---|---|
| Villarreal Castillo | Mexico, Colombia, Ecuador, Spain, Chile |