In Croatia, Gregačević families are Croats (from Djakovo area ). In the past century, relatively most of Croatian residents bearing this family name were born in Djakovo and Osijek.
Prevalence
About 60 people with faimily name Gregačević live in Croatia today, in 30 households. There were 50 of them in the middle of the past century, and their number increased by 40 percent. They are located in four Croatian counties, four cities and 12 other places, mostly in Viskovci (20) and Gorjani (15) in Djakovo area, Djakovo (<10), Tomasanci in Djakovo area (<10), and in Osijek (<5).
Outside Croatia
Family name Gregačević 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 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.