In Croatia, Nicolich families are Croats by relative majority, equally Italians. In the past century, relatively most of Croatian residents bearing this family name were born on the Island of Losinj.
Prevalence
Only a few people with faimily name Nicolich live in Croatia today, in two households only. There were 20 of them in the middle of the past century, and their number decreased significantly. They are located in one Croatian city only, in Mali Losinj on the Island of Losinj (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over a hundred times, the first time 1689 in source Catholic Church Parish Records.