Mašinović families can be both Croats (the family name originates from Cazinska Krajina Region , Bosnia) and Bosniaks (from western Bosnia). In the past century, relatively most of Croatian residents bearing this family name were born in Cazins Region, Bosnia (Velika Kladusa area) and in Banja Luka Region, Bosnia (Banja Luka area). In Crvarevac in Cazins Region (Bosnia) every second inhabitant had the family name Mašinović.
Prevalence
About 140 people with faimily name Mašinović live in Croatia today, in 60 households. There were 0 of them in the middle of the past century, and their number multiplied. They are located in the most of Croatian counties, in 22 cities and 15 other places, mostly in Zagreb (40), Sisak (40), Rijeka (25), Pula (15), and in Karlovac (<10).
Outside Croatia
Family name Mašinović (including: Masinovic , Masinovich ) is present in 14 countries on three continents. The family name "Masinovic " is used by some 100 people in the United States , small number in Australia , and small number of people in Italy.
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.