Cognomen Vilyam (Вильям 
, Vilyam 
) , across the world, is a rare surname. The last name Vilyam is characteristic of Armenia, where it is a rare surname, Kazakhstan, where it is a very rare surname, and Pakistan. Not in comparison with a country's population, this name is the most popular in India, Pakistan, and Russia. More frequently, Vilyam is the forename as well as the last name.