Surname Kolec (Kolec 
) , throughout the world, is a rare cognomen. The last name Kolec is characteristic of Croatia, where it is quite a rare surname, Poland, where it is a rare surname, and Argentina, where it is a very rare surname. Not in comparison with a country's population, it is the most numerous in Poland, Croatia, and the United States. Likewise, Kolec is the forename as well as the last name.