Brešić families are Croats and they are mostly from western Bosnia. In the past century, relatively most of Croatian residents bearing this family name were born in Western Bosnia (Livno area) and in Slavonski Brod.
Prevalence
About 130 people with faimily name Brešić live in Croatia today, in 60 households. There were 10 of them in the middle of the past century, and their number multiplied. They are located in the most of Croatian counties, in 23 cities and 9 other places, mostly in Zagreb (45), Slavonski Brod (15), Split (15), Zapresic (10), and in Pula (10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 2007 in source Encyclopaedia of Croatian Surnames.