In Croatia, Franjek families are Croats (from Sisak ).
Prevalence
Only a few people with faimily name Franjek live in Croatia today, in one household only. There were 10 of them in the middle of the past century, and their number decreased significantly. They are located in only two Croatian places: in Sisak (<5) and Simljana in Cazma area (<5).
Outside Croatia
Family name Franjek (including: Franiek , Franieck ) is present in 9 countries on four continents.