A Spanish and French surname of Castillo originally meant castle. The Latin term was ‘castellan’ for a fortified building.

Other spellings for Castillo are Castel, Castilon, Casstilonne, Gasttilon, Gasstilone, Casteel, Castilla, Castillos and Castello.

Just in Warwickshire county of England is there any sizable Castillo population.

In Spain and Latin American countries of Argentina, Puerto Rico, Dominican Republic and El Salvador are the greater Castillo populations.

The southwest states of Texas, New Mexico, Arizona and California have the higher numbers of individual with the Castillo surname.

Famous: Bernal Diaz del Castillo (16th century Spanish conquistador with Cortes conquering Mexico), Ana Castillo (novelist and poet), Frank Castillo (professional baseball player), Jesus ‘Chucho’ Castillo (professional boxer from Mexico), Juan Castillo (soccer player from Venezuela), Ramon Castillo (president of Argentina), Ruben Castillo (professional American boxer), Miguel Santin del Castillo (19th century president of El Salvador) and Braulio Castillo (actor from Puerto Rico).