In Croatia, Oštilj families are generally Croats (from Samobor ), rarely Slovenes (also from Samobor ). In the past century, relatively most of Croatian residents bearing this family name were born in Samobor and in Slovenia.
Prevalence
About 10 people with faimily name Oštilj live in Croatia today, in three households only. They are located in only threee naselja i to in Bregana (<10), Lug Samoborski (<5), and in Samobor (<5).