Globally, Vasiliyev (Vasiliyev , Василиев ) is an extremely rare unknown gender first name. Much more prevalently, Vasiliyev is the last name as well as the forename.
Василйев, Васіліев, and Васілієв
Max, Ivan, Sergey, Nastia, Alexandr, and Alexander
, Василиев 
) is an extremely rare unknown gender first name. Much more prevalently, Vasiliyev is the last name as well as the forename.