In Croatia, Kaser families are generally Croats (from Middle Bosnia ), very rarely Hungarians (from Beli Manastir area ). In the past century, relatively most of Croatian residents bearing this family name were born in Doboj, Bosnia (Doboj area) and in Middle Bosnia (Tesanj area).
Prevalence
About 20 people with faimily name Kaser live in Croatia today, in 11 households. There were 20 of them in the middle of the past century, and their number remains constant. They are located in 6 Croatian counties, in 7 cities and four other places, mostly in Zagreb (<10), Donji Miholjac (<10), Kascerga (<5), Dubrovnik (<5), and in Batina in Beli Manastir area (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1931 in source Emigration Commission Zagreb.