Last name Silyan (Силян 
, Silyan 
) , around the globe, is a very rare family name. The cognomen Silyan is characteristic of Bulgaria, where it is a rare surname, Honduras, where it is a very rare surname, and Venezuela, where it is an extremely rare surname. Not in comparison with a country's population, the name is most common in Bulgaria, the United States, and India. More frequently, Silyan is the forename as well as the last name.