In Croatia, Feller families are generally Croats (from Zagreb ), very rarely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Osijek and Zagreb.
Prevalence
About 20 people with faimily name Feller live in Croatia today, in 10 households. There were 20 of them in the middle of the past century, and their number remains constant. They are located in five Croatian cities only: in Zagreb (10), Osijek (<5), Ivanic-Grad (<5), Rovinj (<5), and in Mocile (<5).
Outside Croatia
Family name Feller is present in 75 countries worldwide. The family name "Feller " is used by some 8000 people in the United States , about 5000 in Germany , and some 2000 people in Brazil.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1932 in source Emigration Commission Zagreb.