Tadinac families are Croats and they are mostly from Omis. In the past century, relatively most of Croatian residents bearing this family name were born in Split and Omis.
Prevalence
About 80 people with faimily name Tadinac live in Croatia today, in 40 households. There were 70 of them in the middle of the past century, and their number increased by 10 percent. They are located in 6 Croatian counties, in 7 cities and 12 other places, mostly in Split (35), Podstrana in Solin area (10), Donji Dolac (10), Gardun in Sinj area (<10), and in Zagreb (<10).
Outside Croatia
Family name Tadinac is present in four countries on three continents.
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.