Weiss families are Croats and they are mostly from Virovitica. According to some sources they are from Graz area (Austrija) and from Smarje pri Jelsah (Slovenija). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Virovitica.
Prevalence
About 100 people with faimily name Weiss live in Croatia today, in 60 households. There were 110 of them in the middle of the past century, and their number decreased by 0 percent. They are located in the most of Croatian counties, in 14 cities and 8 other places, mostly in Zagreb (55), Virovitica (10), Krasica (<10), Rijeka (<10), and in Osijek (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over a hundred times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.