Ostojić families are mainly Croats and they are mostly from Herzegovina , also Serbs, very rarely Montenegrins. In the past century, relatively most of Croatian residents bearing this family name were born in Herzegovina (Citluk area) and in Zagreb. In Bijakovići in Herzegovina every third inhabitant had the family name Ostojić.
Prevalence
About 2000 people with faimily name Ostojić live in Croatia today, in 930 households. There were 2200 of them in the middle of the past century, and their number decreased by 10 percent. They are located in almost all Croatian counties, in 80 cities and 191 other places, mostly in Zagreb (415), Split (120), Rijeka (75), Povlja on the Island of Brac (70), and in Slavonski Brod (60).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over seventy times, the first time 1749 in source 18th Century Census.
