In Croatia, Gis families are Croats (from Djakovo area ). In the past century, relatively most of Croatian residents bearing this family name were born in Djakovo and in Djakovo area.
Prevalence
Only a few people with faimily name Gis live in Croatia today, in five households only. They are located in only two Croatian places: in Majar in Djakovo area (<5) and Osijek (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1930 in source Emigration Commission Zagreb.