Oršulić families are Croats and they are mostly from Bosnian Krajina. In the past century, relatively most of Croatian residents bearing this family name were born in Bosnian Krajina (Kotor Varos area) and in Bosanian Posavina (Bosanska Gradiska area). In Donje Postinje in Sinj area every fifth inhabitant had the family name Oršulić.
About 760 people with faimily name Oršulić live in Croatia today, in 290 households. There were 300 of them in the middle of the past century, and their number more than doubled. They are located in almost all Croatian counties, in 35 cities and 67 other places, mostly in Komin (95), Nova Gradiska (85), Split (60), Zagreb (45), and in Resetari in Nova Gradiska area (45).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1917 in source List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia.