Tadijan families are Croats and they are mostly from Djakovo area. In the past century, relatively most of Croatian residents bearing this family name were born in Djakovo area and in Donji Miholjac.
Prevalence
About 80 people with faimily name Tadijan live in Croatia today, in 30 households. There were 40 of them in the middle of the past century, and their number doubled. They are located in 7 Croatian counties, in 7 cities and 6 other places, mostly in Punitovci in Djakovo area (35), Osijek (15), Donji Miholjac (10), Rijeka (<10), and in Podstrana in Solin area (<5).
Outside Croatia
Family name Tadijan (including: Tadiyan , Thadiyan ) is present in 10 countries worldwide.