Family name Геника (Genika 
, Геника 
, Genyka 
) , globally, is a rare surname. The last name Геника is characteristic of Bulgaria, where it is a rare surname, Georgia, where it is a very rare surname, and Nicaragua. Not in comparison with a country's population, it is the most numerous in Bulgaria, India, and Russia. More prevalently, Геника is the forename as well as the last name.