Gvoić families are frequently Serbs and they are mostly from Dugo Selo , less frequently Croats. In the past century, relatively most of Croatian residents bearing this family name were born in Glina area and in Dugo Selo. In Brnjavac in Glina area every eighth inhabitant had the family name Gvoić.
Prevalence
About 80 people with faimily name Gvoić live in Croatia today, in 40 households. There were 150 of them in the middle of the past century, and their number halved. They are located in 7 Croatian counties, in 7 cities and 13 other places, mostly in Zagreb (20), in Dugo Selo Lasinjsko (15) and Brnjavac (<10) in Glina area, Naudovac in Virovitica area (<10), and in Karlovac (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1917 in source List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia.