In Croatia, Cancianich families are Croats (from Rijeka ).
Prevalence
About 10 people with faimily name Cancianich live in Croatia today, in one household only. There were 10 of them in the middle of the past century, and their number remains constant. They are located in one Croatian city only, in Rijeka (<5).
Outside Croatia
Family name Cancianich is present in this form only in Croatia.