Last name Gelka (Gelka 
, Гелка 
) , in the entire world, is a rare cognomen. The family name Gelka is habitual in Ukraine, where it is a rare surname, Canada, where it is a very rare surname, and Nicaragua. Not in comparison with a country's population, the name is most common in Ukraine, Russia, and Canada. Likewise, Gelka is the forename as well as the last name.