Udovčić 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 Middle Bosnia (Zenica area) and in Bosanian Posavina (Odzak area). In Donja Lohinja in Bosanian Posavina every fourth inhabitant had the family name Udovčić.
Prevalence
About 220 people with faimily name Udovčić live in Croatia today, in 80 households. There were 60 of them in the middle of the past century, and their number more than tripled. They are located in the most of Croatian counties, in 32 cities and 31 other places, mostly in Slavonski Brod (30), Stara Josava (25), Strizivojna in Djakovo area (20), Zagreb (15), and in Ciglenica (15).
Outside Croatia
Family name Udovčić is present in 9 countries on three continents. The family name "Udovcic " is used by small number of people in Germany and small number in the United States.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 2007 in source Encyclopaedia of Croatian Surnames.