In Croatia, Altmann families are Croats (from Osijek ). In the past century, relatively most of Croatian residents bearing this family name were born in Osijek.
Prevalence
Only a few people with faimily name Altmann live in Croatia today, in two households only. They are located in only five naselja i to in Osijek (<5), Zagreb (<5), Vinkovci (<5), Visnjevac (<5), and in Salatici on the Island of Krk (<5).
Outside Croatia
Family name Altmann (including: Althmann , Haltmann ) is present in 59 countries worldwide. The family name "Altmann " is used by some 10000 people in Germany , about 2000 in Brazil , and some 2000 people in the United States.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.