Radivoj families are predominantly Croats and they are mostly from the Island of Krk , less frequently Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Osijek and Rijeka.
Prevalence
About 70 people with faimily name Radivoj live in Croatia today, in 30 households. There were 130 of them in the middle of the past century, and their number halved. They are located in 8 Croatian counties, in 8 cities and 10 other places, mostly in Krk on the Island of Krk (25), Zagreb (15), Tenja (<10), Osijek (<10), and in Rijeka (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1927 in source Emigration Commission Zagreb.