In Croatia, Slavik families are predominantly Croats (from Vrbovec area ), very rarely Czechs (also from Vrbovec area ), and . In the past century, relatively most of Croatian residents bearing this family name were born in Middle Bosnia (Zavidovici area) and in Zagreb.
Prevalence
About 40 people with faimily name Slavik live in Croatia today, in 20 households. There were 60 of them in the middle of the past century, and their number decreased by 40 percent. They are located in the most of Croatian counties, in 9 cities and 5 other places, mostly in Varazdin (<10), Dubrava in Vrbovec area (<10), Zagreb (<5), Glina (<5), and in Ludbreg (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over twenty times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.