In Croatia, Kisilj families are predominantly Ukrainians (from Vukovar area ), rarely Croats (also from Vukovar area ), and . In the past century, relatively most of Croatian residents bearing this family name were born in Vukovar and in Bosnian Krajina (Prnjavor area).
Prevalence
About 10 people with faimily name Kisilj live in Croatia today, in three households only. They are located in only one small Croatian place, in Petrovci in Vukovar area (10).