Mateljić families are Croats and they are mostly from Bosnian Posavina. In the past century, relatively most of Croatian residents bearing this family name were born in Bosanian Posavina (Brcko area) and in Zagreb.
Prevalence
About 70 people with faimily name Mateljić live in Croatia today, in 40 households. They are only located in in 9 Croatian cities and 7 other places, mostly in Zagreb (25), Gunja in Zupanja area (15), Ivanec Bistranski (<10), Vukovar (<5), and in Kriz in Ivanic-Grad area (<5).
Outside Croatia
Family name Mateljić is present in five countries on two continents.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.