Bajan families are Croats and they are mostly from Knin area. In the past century, relatively most of Croatian residents bearing this family name were born in Knin area and in Slavonski Brod.
Prevalence
About 280 people with faimily name Bajan live in Croatia today, in 110 households. There were 130 of them in the middle of the past century, and their number doubled. They are located in the most of Croatian counties, in 21 cities and 15 other places, mostly in Zagreb (70), Slavonski Brod (45), Kijevo in Knin area (40), Knin (35), and in Split (20).
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.