In the entire world, Вассилий (Vassiliy 
, Vassily 
, Вассилий ) is a rare primarily male, but very infrequently female forename. The first name Вассилий is characteristic of Tajikistan, where it is quite a rare male name, Kazakhstan, where it is a rare masculine name, and Belgium. Measured by absolute frequency, it most frequently occurs in Tajikistan, the United States, and Kazakhstan. Much less frequently, Вассилий is the last name as well as the forename.