In Croatia, Šiđanski families are Croats (from Slavonski Brod ).
Prevalence
Only a few people with faimily name Šiđanski live in Croatia today, in two households only. They are located in one Croatian city only, in Slavonski Brod (<5).
Outside Croatia
Family name Šiđanski is present in four countries on two continents.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 2007 in source Encyclopaedia of Croatian Surnames.