Family name Доллар (Dollar 
, Доллар 
) , around the world, is a common cognomen. The family name Доллар 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. Measured by absolute frequency, it is the most numerous in the United States, Cameroon, and Bangladesh. Much less frequently, Доллар is the forename as well as the last name.