Ošap families are Croats and they are mostly from Banja Luka area (Bosnia). In the past century, relatively most of Croatian residents bearing this family name were born in Banja Luka Region, Bosnia (Banja Luka area) and in Djakovo area.
Prevalence
About 100 people with faimily name Ošap live in Croatia today, in 40 households. They are located in the most of Croatian counties, in 13 cities and 20 other places, mostly in Smrtic in Nova Gradiska area (15), Zagreb (<10), Velika Kopanica in Djakovo area (<10), Cage in Nova Gradiska area (<10), and in Zadar (<10).
Outside Croatia
Family name Ošap (including: Osap , Osaph ) is present in four countries on three continents. The family name "Osap " is used by small number of people in the United States.
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.