Basilia \b(a)-si-lia\ as a girl's name is of Greek origin, and the meaning of Basilia is "royal, regal". Feminine form of Basil. Common in the Middle Ages.

Basilia has 12 variant forms: Baseele, Baseelia, Baseelle, Bazeele, Bazeelia, Bazeelle, Basile, Basilie, Basille, Bazile, Bazille and Bazilla.