Cognomen Улудаг (Uludag 
, Улудаг 
) , around the world, is quite a rare surname. The family name Улудаг is characteristic of North Macedonia, where it is quite a rare surname, Sweden, where it is a rare surname, and Turkey. Not in comparison with a country's population, it most frequently occurs in Turkey, Germany, and France. Much less frequently, Улудаг is the forename as well as the last name.