Cognomen Kulyas (Kulyas 
, Куляс 
) , across the world, is quite a rare last name. The last name Kulyas is characteristic of Ukraine, where it is quite a rare surname, Moldova, and Kazakhstan, where it is a rare surname. Measured by absolute frequency, the name is most common in Eastern Europe, particularly Ukraine, Russia, and Moldova. Much less frequently, Kulyas is the forename as well as the last name.