In Croatia, Ćuc families are Croats (from Dugi (Long) Island ). In the past century, relatively most of Croatian residents bearing this family name were born on Dugi, Long Island.
Prevalence
Only a few people with faimily name Ćuc live in Croatia today, in three households only. There were 10 of them in the middle of the past century, and their number decreased significantly. They are located in only two Croatian places: in Zagreb (<5) and Zman on Dugi (Long) Island (<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.