Grgetić families are Croats and they are mostly from Ozalj area. According to some sources they are from Slunj (Ladjevac). In the past century, relatively most of Croatian residents bearing this family name were born in Vinkovci and Slunj. In Grgetići in Ozalj area every second inhabitant had the family name Grgetić.
Prevalence
About 80 people with faimily name Grgetić live in Croatia today, in 30 households. There were 100 of them in the middle of the past century, and their number decreased by 30 percent. They are located in 8 Croatian counties, in 10 cities and 6 other places, mostly in Zagreb (25), Ivankovo in Vinkovci area (10), Koprivnica (<10), Vinkovci (<10), and in Cickovina in Ludbreg area (<10).
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.