In Croatia, Vlahić families are Croats (from East Herzegovine ). In the past century, relatively most of Croatian residents bearing this family name were born in Split and in East Herzegovina (Stolac area).
Prevalence
About 10 people with faimily name Vlahić live in Croatia today, in 6 households. There were 0 of them in the middle of the past century, and their number multiplied. They are located in threee Croatian counties, four cities and two other places, mostly in Split (<5), Mokosica (<5), Dubrovnik (<5), Metkovic (<5), and in Velika Gorica (<5).
Outside Croatia
Family name Vlahić (including: Vlahic , Vlachic ) is present in five countries on two continents. "Vlachic " is used by few people in the United States.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1672 in source Catholic Church Parish Records.