Tvrtko is a male name, in Croatia exclusively Croatian. It is one of the quite common names (among the top thousand) in Croatia, with over five hundred namesakes living there.
The relative popularity of names Tvrtko in Croatia
The name Tvrtko was the most popular from years 1976 to 1986. The peak year was 1976.
Name Tvrtko is relatively more common in the north of the country. Most of the persons named Tvrtko live in the following cities and municipalities: Zagreb (over two hundred), Slavonski Brod (about twenty), Osijek (less than twenty).