What does Vasily mean?
Vasily \v(a)-si-ly\ as a boys' name. Vasily's root is Greek, and Vasily means "royal, kingly". Vasily is a variation of Basil (Greek): from the Greek name Basileios. Vasily is also a variant of Vasilis (Greek).
Vasily has 24 more alternative forms via Basil, Vasilis: Basile, Basileios, Basilic, Basilides, Basilie, Basilio, Basilius, Bazeel, Bazeelius, Bazil, Bazyli, Vasile, Vasileios, Vasileos, Vasilij, Vasilije, Vasilios, Vasilius, Vasilus, Vaso, Vasos, Vassilij, Vasya and Wassily.
Vasily is an unusual first name for males. Vasily is also an uncommon surname for all people. (2000 U.S. Census)
Basil is the only prominent related form of Vasily (#unlisted) listed in the Top 1000. Adoption of these boy names was at its peak during the years 1900-1909 (usage of 0.688%) and is now much less, with Basil becoming less fashionable. Shown below is a comparison of the popularity of the boy name Vasily and related names. (2014 Birth Statistics)