In Croatia, Buzar families are Croats (from Bosnian Posavina ). In the past century, relatively most of Croatian residents bearing this family name were born in Bosanian Posavina (Derventa area) and in Knin area.
Prevalence
About 20 people with faimily name Buzar live in Croatia today, in 9 households. They are located in two Croatian cities only, in Slavonski Brod (15) and Zagreb (10).
Outside Croatia
Family name Buzar (including: Buzahr , Buzzar and Buzhar ) is present in 25 countries worldwide. "Buzzar " is used by small number of people in the United States , small number in Brazil , and small number of people in Jamaica.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over thirty times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.