In Croatia, Tonelli families are predominantly Italians (from Rovinj area ), rarely Croats (also from Rovinj area ), and . In the past century, relatively most of Croatian residents bearing this family name were born in Pula and in Rovinj area.
Prevalence
About 10 people with faimily name Tonelli live in Croatia today, in five households only. There were 30 of them in the middle of the past century, and their number decreased significantly. They are located in two Croatian counties, two cities and another small place , mostly in Rovinj (<5), Funtana in Rovinj area (<5), and in Rijeka (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over sixty times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.