Last name Kolonic (Kolonic 
) , across the world, is a very rare family name. The last name Kolonic is characteristic of Croatia, where it is a rare surname, New Zealand, and Netherlands, where it is a very rare surname. Not in comparison with a country's population, this name is the most popular in the United States, Netherlands, and Germany. Much less frequently, Kolonic is the forename as well as the last name.