The Castillos Family Name
Castillos belongs to the Castillo family of names, which has Spanish roots.
The extra “s” in Castillos is a spelling habit rather than a different name. Before spelling was standardised, one family could appear under several forms.
Looking for a Castillos coat of arms? Arms were granted to families, not to surnames, and our research shows which heraldic tradition fits yours. Want more than a summary? See the Castillos family name pack.