Oreb families are Croats and they are mostly from the Island of Korcula. In the past century, relatively most of Croatian residents bearing this family name were born on the Island of Korcula and in Split. In Vela Luka on the Island of Korcula every twentieth inhabitant had the family name Oreb.
Prevalence
About 330 people with faimily name Oreb live in Croatia today, in 160 households. There were 280 of them in the middle of the past century, and their number increased by 20 percent. They are located in 7 Croatian counties, in 13 cities and 13 other places, mostly in Vela Luka (210) and Blato (40) on the Island of Korcula, Split (35), Zagreb (30), and in Dubrovnik (<10).
Outside Croatia
Family name Oreb is present in 19 countries worldwide.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.