In Croatia, Sebešić families are Croats (from Bosnian Posavina ). In the past century, relatively most of Croatian residents bearing this family name were born in Bosanian Posavina (Odzak area) and in Bosanian Posavina (Bosanski Samac area).
Prevalence
About 30 people with faimily name Sebešić live in Croatia today, in 13 households. They are located in 8 Croatian counties, in 7 cities and 6 other places, mostly in Selnica Scitarjevska (<10), Plano (<10), Petrijevci in Valpovo area (<5), Donji Lipovac in Pozega area (<5), and in Osijek (<5).
Outside Croatia
Family name Sebešić is present in this form only in Croatia.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.