Guberac families are Croats and they are mostly 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 Doboj, Bosnia (Doboj area).
Prevalence
About 220 people with faimily name Guberac live in Croatia today, in 80 households. There were 40 of them in the middle of the past century, and their number multiplied. They are located in the most of Croatian counties, in 13 cities and 23 other places, mostly in Slavonski Brod (120), Gornja Vrba in Slavonski Brod area (20), Hrvace in Sinj area (20), Osijek (10), and in Ivanic-Grad (<10).
Outside Croatia
Family name Guberac is present in 6 countries on two continents.
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.