In Croatia, Greganović families are generally Croats (from Djakovo area ), very rarely Hungarians, and . In the past century, relatively most of Croatian residents bearing this family name were born in Djakovo area and in Djakovo. In Pridvorje in Djakovo area every tenth inhabitant had the family name Greganović.
Prevalence
About 40 people with faimily name Greganović live in Croatia today, in 19 households. They are located in four Croatian counties, four cities and 6 other places, mostly in Osijek (10), Djakovo (<10), Soljani in Zupanja area (<5), Zagreb (<5), and in Bilje in Osijek area (<5).
Outside Croatia
Family name Greganović 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 1933 in source Emigration Commission Zagreb.