In Croatia, Grbač families are Croats (from Virovitica area ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Srijem, Vojvodina.
Prevalence
About 30 people with faimily name Grbač live in Croatia today, in 10 households. There were 30 of them in the middle of the past century, and their number remains constant. They are located in four Croatian counties, four cities and 7 other places, mostly in Scitarjevo (<10), Petina (<10), Virovitica (<10), Zagreb (<5), and in Gornje Bazje in Virovitica area (<5).
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.