Alviž families are Croats and they are mostly from Sibenik. In the past century, relatively most of Croatian residents bearing this family name were born in Sibenik and in Backa, Vojvodina.
Prevalence
About 140 people with faimily name Alviž live in Croatia today, in 60 households. There were 60 of them in the middle of the past century, and their number more than doubled. They are located in 9 Croatian counties, in 12 cities and 9 other places, mostly in Zaton (45), Sibenik (25), Raslina (20), Zagreb (10), and in Pula (10).
Outside Croatia
Family name Alviž is present in 29 countries worldwide.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 2007 in source Encyclopaedia of Croatian Surnames.