Cognomen Vasiley (Василей 
, Vasiley 
) , in the entire world, is a very rare surname. The cognomen Vasiley is habitual in Greece, where it is a very rare surname, Ukraine, where it is an extremely rare surname, and Russia. In absolute terms, it is commonest in Greece, Russia, and the United States. More prevalently, Vasiley is the forename as well as the last name.