In Croatia, Benvenju families are Italians (from Umag ). In the past century, relatively most of Croatian residents bearing this family name were born in Umag and in Slovenia.
Prevalence
Only a few people with faimily name Benvenju live in Croatia today, in two households only. There were 0 of them in the middle of the past century, and their number remains constant. They are located in one Croatian city only, in Umag (<5).
Outside Croatia
Family name Benvenju is present in 18 countries worldwide.