Vasilios \v(a)-si-lios\ as a boy's name is a variant of Basil (Greek), and the meaning of Vasilios is "royal, kingly".
The baby name Vasilios sounds like Vasilius, Vasilis, Vasileos and Vasileios. Other similar baby names are Vasilus, Vasilije, Vasili, Basilius, Basileios and Vasilij.