Kuk families are Croats and they are mostly from Zlatar area. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Zlatar area.
Prevalence
About 90 people with faimily name Kuk live in Croatia today, in 30 households. There were 100 of them in the middle of the past century, and their number decreased by 20 percent. They are only located in in 6 Croatian cities and 5 other places, mostly in Zagreb (55), Sesvete (<10), Ivanec Bistranski (<10), Globocec in Zlatar area (<10), and in Krizevci (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.