Istvan is a male name, in Croatia largely Croatian, but also Hungarian. It is one of the medium frequent names in Croatia, with about one hundred namesakes living there.
The relative popularity of names Istvan in Croatia
The name Istvan was the most popular from years 1936 to 1943. The peak year was 1943.
Prevalence
Name Istvan is relatively more common in the north of the country. Most of the persons named Istvan live in the following cities and municipalities: Zagreb (less than twenty), Osijek (less than ten), Beli Manastir (less than ten).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over twenty times, the first time 1749 in source 18th Century Census.