In Croatia, Gužvinac families are Croats (from Bjelovar area ). In the past century, relatively most of Croatian residents bearing this family name were born in Bjelovar and Nasice.
Prevalence
About 10 people with faimily name Gužvinac live in Croatia today, in five households only. There were 10 of them in the middle of the past century, and their number remains constant. They are located in threee Croatian counties, threee cities and threee other places, mostly in Bjelovar (<5), Nova Bukovica in Slatina area (<5), Severin in Bjelovar area (<5), Slatina (<5), and in Martin (<5).
Outside Croatia
Family name Gužvinac is present in this form only in Croatia.
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.