Halavuk families are Croats and they are mostly from Djurdjevac area. In the past century, relatively most of Croatian residents bearing this family name were born in Djurdjevac area and in Koprivnica.
Prevalence
About 110 people with faimily name Halavuk live in Croatia today, in 40 households. There were 90 of them in the middle of the past century, and their number increased by 20 percent. They are located and 16 other Croatian places, mostly in Zdala in Djurdjevac area (25), Koprivnica (25), Osijek (20), Drnje in Koprivnica area (<10), and in Novacka in Djurdjevac area (<10).
Outside Croatia
Family name Halavuk 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 2007 in source Encyclopaedia of Croatian Surnames.