In Croatia, Bolvari families are Croats (from Belisce area ). In the past century, relatively most of Croatian residents bearing this family name were born in Belisce area and in Osijek.
Prevalence
About 10 people with faimily name Bolvari live in Croatia today, in two households only. There were 10 of them in the middle of the past century, and their number remains constant. They are located in only four Croatian places: in Donji Miholjac (<5), Podgajci Podravski (<5), Bockinci in Belisce area (<5), and in Sutivan on the Island of Brac (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1942 in source Phone Directory of the Independent State of Croatia 1942.