Family name Jonka (Йонка 
, Jonka 
) , all over the world, is quite a rare last name. The cognomen Jonka is habitual in Bulgaria, where it is quite a common surname, North Macedonia, where it is quite a rare surname, and Albania. Not in comparison with a country's population, it is the most numerous in Bulgaria, Ukraine, and Albania. Also, Jonka is the forename as well as the last name.