In Croatia, Kirchner families are Croats (from Trogir area ).
Prevalence
About 10 people with faimily name Kirchner live in Croatia today, in five households only. There were 0 of them in the middle of the past century, and their number multiplied. They are located in threee Croatian counties, in one city and two other places, mostly in Zagreb (<5), Dugopolje in Solin area (<5), and in Rogoznica in Trogir area (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1929 in source Emigration Commission Zagreb.