Family name Castillo-Baez (Castillo-Baez 
) , worldwide, is an extremely rare last name. The last name Castillo-Baez is habitual in Northern America, particularly the United States, where it is an extremely rare surname. Parts of the name also exists independently as a last name Castillo, and a last name Baez.
| VARIANT | COUNTRY |
|---|---|
| Castillo-Baez | United States |