Okanović families can be both Croats (the family name originates from Cazinska Krajina Region , Bosnia) and Bosniaks (iz Tuzla Region, Bosnia), very rarely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Cazins Region, Bosnia (Velika Kladusa area) and in Cazins Region, Bosnia (Bihac area). In Nahvioci in Tuzla Region (Bosnia) every tenth inhabitant had the family name Okanović.
Prevalence
About 200 people with faimily name Okanović live in Croatia today, in 80 households. There were 20 of them in the middle of the past century, and their number multiplied. They are located in the most of Croatian counties, in 24 cities and 35 other places, mostly in Zagreb (35), Rijeka (15), Babina Greda in Zupanja area (15), Labin (15), and in Sesvete (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 2007 in source Encyclopaedia of Croatian Surnames.