Surname Демирович (Demirovic 
, Демирович 
, Demirovich 
) , all around the world, is quite a common cognomen. The cognomen Демирович is characteristic of Southern Europe, particularly Bosnia and Herzegovina, where it is a common surname, Montenegro, where it is quite a common surname, and Serbia. Measured by absolute frequency, this name is the most popular in Bosnia and Herzegovina, Serbia, and the United States.