Dujanović families are often Serbs and they are mostly from Djakovo area , less frequently Croats. In the past century, relatively most of Croatian residents bearing this family name were born in Djakovo area and in Osijek. In Ratkov Dol in Djakovo area every third inhabitant had the family name Dujanović.
Prevalence
About 60 people with faimily name Dujanović live in Croatia today, in 30 households. There were 170 of them in the middle of the past century, and their number decreased significantly. They are located in 7 Croatian counties, in 8 cities and 11 other places, mostly in Daruvar (15), Slavonski Brod (10), Zagreb (<10), Batinjani in Daruvar area (<10), and in Osijek (<10).
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.