In Croatia, Guttmann families are Croats (from Zagreb ).
Prevalence
Only a few people with faimily name Guttmann live in Croatia today, in one household only. They are located in one Croatian city only, in Zagreb (<5).
Outside Croatia
Family name Guttmann is present in 36 countries worldwide. The family name "Guttmann " is used by some 2000 people in Germany , about 1000 in the United States , and some 800 people in Austria.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.