Cognomen بلى (Bla 
, Bly 
, بلى 
) , throughout the world, is a common family name. The family name بلى is characteristic of Ivory Coast, where it is quite a common surname, Montenegro, where it is quite a rare surname, and Serbia. Not in comparison with a country's population, this name is the most popular in the United States, Ivory Coast, and Germany. Also, بلى is the forename as well as the last name.