Last name Dolyar (Dollar 
, Dolyar 
) , globally, is a common surname. The cognomen Dolyar is characteristic of Sub-Saharan Africa, particularly Cameroon, where it is quite a common surname, Senegal, where it is quite a rare surname, and Ghana. Not in comparison with a country's population, it is commonest in the United States, Cameroon, and Bangladesh. Much less frequently, Dolyar is the forename as well as the last name.