Fiala families are often Croats and they are mostly from Srijem , Vojvodina, less frequently Czechs (from Daruvar area ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Srijem, Vojvodina. In Velika Dapčevica in Grubisno Polje every tenth inhabitant had the family name Fiala.
Prevalence
About 90 people with faimily name Fiala live in Croatia today, in 40 households. There were 40 of them in the middle of the past century, and their number doubled. They are located in the most of Croatian counties, in 17 cities and 14 other places, mostly in Zagreb (15), Osijek (10), Josipovac (10), Livana in Osijek area (<10), and in Petrinja (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.