Last name Filias (Filias 
, Филяс 
) , throughout the world, is a rare family name. The last name Filias is characteristic of Greece, where it is quite a rare surname, France, where it is a rare surname, and Switzerland, where it is a very rare surname. Not in comparison with a country's population, it is the most numerous in Greece, France, and the United States. Also, Filias is the forename as well as the last name.