In Croatia, Mosnak families are Croats (from Zagreb ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb.
Prevalence
Only a few people with faimily name Mosnak live in Croatia today, in one household only. They are located in two Croatian counties, in one city and another small place , mostly in Zagreb (<5) and Cestica in Ivanec area (<5).
Outside Croatia
Family name Mosnak is present in five countries on two continents.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 2007 in source Encyclopaedia of Croatian Surnames.