Cognomen Нанка (Nanka 
, Нанка 
) , in the world, is quite a rare family name. The cognomen Нанка is characteristic of Bulgaria, where it is quite a common surname, Georgia, where it is quite a rare surname, and the Democratic Republic of the Congo, where it is a rare surname. Not in comparison with a country's population, it most frequently occurs in Bulgaria, India, and the Democratic Republic of the Congo. Much more frequently, Нанка is the forename as well as the last name.