Rudolf families are Croats and they are mostly from Split. In the past century, relatively most of Croatian residents bearing this family name were born in Split and Bjelovar. In Podbrđe in Kutina area every fourtieth inhabitant had the family name Rudolf.
Prevalence
About 80 people with faimily name Rudolf live in Croatia today, in 40 households. There were 90 of them in the middle of the past century, and their number decreased by 10 percent. They are located in the most of Croatian counties, in 15 cities and 20 other places, mostly in Zagreb (<10), Split (<10), Djakovo (<10), Umag (<10), and in Gardinovec in Cakovec area (<10).
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.