In Croatia, Arvaj families are Croats (from Orahovica area ). In the past century, relatively most of Croatian residents bearing this family name were born in Osijek and Pozega.
Prevalence
About 40 people with faimily name Arvaj live in Croatia today, in 17 households. There were 50 of them in the middle of the past century, and their number decreased by 10 percent. They are located in 7 Croatian counties, in 7 cities and 7 other places, mostly in Hrnjevac in Orahovica area (15), Osijek (10), Ilok (<10), Vukovar (<5), and in Tenja (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.