Orešić families are Croats and they are mostly from Nova Gradiska area. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Donja Stubica area.
Prevalence
About 390 people with faimily name Orešić live in Croatia today, in 170 households. There were 480 of them in the middle of the past century, and their number decreased by 20 percent. They are located in the most of Croatian counties, in 18 cities and 18 other places, mostly in Zagreb (240), Gornji Bogicevci in Nova Gradiska area (20), Slavonski Brod (20), Sesvete (15), and in Sisak (10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1683 in source Catholic Church Parish Records.