Cognomen Diuka (Diuka 
, Дюка 
) , all over the world, is a rare family name. The surname Diuka is characteristic of Russia, where it is a rare surname, Ukraine, where it is a very rare surname, and Georgia. Measured by absolute frequency, it is the most numerous in Russia, Ukraine, and Nigeria. Very seldom, Diuka is the forename as well as the last name.