Surname Kačmarik (Kačmarik 
, Качмарик 
) , in the entire world, is quite a rare cognomen. The cognomen Kačmarik is habitual in Eastern Europe, particularly Ukraine, where it is quite a rare surname, Slovakia, where it is a rare surname, and Belarus, where it is a very rare surname. Not in comparison with a country's population, it most frequently occurs in Eastern Europe, particularly Ukraine, Russia, and Slovakia.