In Croatia, Muk families are Croats (from Osijek ). In the past century, relatively most of Croatian residents bearing this family name were born in Osijek.
Prevalence
About 10 people with faimily name Muk live in Croatia today, in 6 households. There were 20 of them in the middle of the past century, and their number halved. They are located in only two Croatian places: in Osijek (<10) and Selina in Porec area (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over twenty times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.