Bejuk families are Croats and they are mostly from Novi Marof area. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Novi Marof area.
Prevalence
About 100 people with faimily name Bejuk live in Croatia today, in 40 households. There were 100 of them in the middle of the past century, and their number remains constant. They are located in 10 Croatian counties, in 13 cities and 15 other places, mostly in Zagreb (25), Gornji Kraljevec in Novi Marof area (20), Slatina (<10), Breznicki Hum in Novi Marof area (<10), and in Varazdin (<10).
Outside Croatia
Family name Bejuk (including: Böyük , Belyuk , Bejuc , Belyukh and Beyuk ) is present in 20 countries worldwide.
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.