In Croatia, Rahan families are Croats (from Ogulin area ). In the past century, relatively most of Croatian residents bearing this family name were born in Ogulin and Split.
Prevalence
About 20 people with faimily name Rahan live in Croatia today, in 7 households. There were 10 of them in the middle of the past century, and their number doubled. They are located in only threee Croatian places: in Ostarije in Ogulin area (10), Karlovac (<5), and in Postira on the Island of Brac (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1931 in source Emigration Commission Zagreb.