Grbešić families are Croats and they are mostly from Herzegovina. In the past century, relatively most of Croatian residents bearing this family name were born in Herzegovina (Siroki Brijeg area) and in Herzegovina (Mostar area).
Prevalence
About 190 people with faimily name Grbešić live in Croatia today, in 90 households. There were 20 of them in the middle of the past century, and their number multiplied. They are located in the most of Croatian counties, in 25 cities and 13 other places, mostly in Zagreb (60), Tovarnik in Ilok area (35), Cavtat in Dubrovnik area (15), Osijek (10), and in Makarska (<10).
Outside Croatia
Family name Grbešić is present in five countries on three continents. The family name "Grbesic " is used by small number of people in the United States and small number in Canada.
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.