Surname Герник (Gernik 
, Герник 
, Guernik 
) , around the globe, is a very rare family name. The family name Герник is characteristic of Argentina, where it is a very rare surname, Ukraine, and Kazakhstan. Not in comparison with a country's population, it is the most numerous in Argentina, Ukraine, and Russia. Much less frequently, Герник is the forename as well as the last name.