In Croatia, Mazzi families are predominantly Croats (from Pula ), rarely Italians (from Rovinj ), and very rarely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Pula.
Prevalence
About 20 people with faimily name Mazzi live in Croatia today, in 8 households. There were 10 of them in the middle of the past century, and their number doubled. They are located in four Croatian counties and another small place , mostly in Zagreb (<10), Zminj in Pazin area (<10), Zadar (<5), Rovinj (<5), and in Rijeka (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1942 in source Phone Directory of the Independent State of Croatia 1942.