Sejdinović families are predominantly Bosniaks and they are mostly from western Bosnia , less frequently Croats. In the past century, relatively most of Croatian residents bearing this family name were born in Western Bosnia (Glamoc area) and in Osijek. In Hozići in Western Bosnia every tenth inhabitant had the family name Sejdinović.
Prevalence
About 90 people with faimily name Sejdinović live in Croatia today, in 30 households. They are located in 10 Croatian counties, in 16 cities and 9 other places, mostly in Tvrdjavica (20), Sisak (15), Zagreb (10), Velika Gorica (<10), and in Bale in Rovinj area (<10).
Outside Croatia
Family name Sejdinović is present in 8 countries on two continents. The family name "Sejdinovic " is used by some 60 people in the United States , small number in Germany , and small number of people in Sweden.