Njavro families are Croats and they are mostly from dobojskoga kraja. According to some sources they are from Hrasnog, Bosnia. In the past century, relatively most of Croatian residents bearing this family name were born in Doboj, Bosnia (Doboj area) and in Pozega. In Cerovica in Doboj area, BiH every fourth inhabitant had the family name Njavro.
Prevalence
About 170 people with faimily name Njavro live in Croatia today, in 80 households. There were 40 of them in the middle of the past century, and their number multiplied. They are located in 9 Croatian counties, in 12 cities and 15 other places, mostly in Zagreb (45), Dubrovnik (35), Pozega (15), Cibaca in Dubrovnik area (15), and in Zaton (15).
Outside Croatia
Family name Njavro is present in 11 countries on three continents. The family name "Njavro " is used by small number of people in the United States and small number in Bulgaria.