Grebenar families are Croats and they are mostly from middle Bosnia. In the past century, relatively most of Croatian residents bearing this family name were born in Middle Bosnia (Vitez area) and in Middle Bosnia (Travnik area). In places Mali Mošunj , Gladnik and Bila in Middle Bosnia every seventh inhabitant had the family name Grebenar.
Prevalence
About 210 people with faimily name Grebenar live in Croatia today, in 80 households. There were 30 of them in the middle of the past century, and their number multiplied. They are located in the most of Croatian counties, in 27 cities and 22 other places, mostly in Zagreb (45), Sesvete (20), Solin (10), Osijek (<10), and in Dugo Selo (<10).
Outside Croatia
Family name Grebenar is present in 18 countries on four continents.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1925 in source Emigration Commission Zagreb.