Šiša families are Croats and they are mostly from Dubrovnik area. In the past century, relatively most of Croatian residents bearing this family name were born in Pula and Dubrovnik. In Mihanići in Dubrovnik area every eighth inhabitant had the family name Šiša.
Prevalence
About 100 people with faimily name Šiša live in Croatia today, in 50 households. There were 60 of them in the middle of the past century, and their number increased by 60 percent. They are located in 8 Croatian counties, in 9 cities and 6 other places, mostly in Kavran in Pula area (20), Pula (20), Mihanici in Dubrovnik area (15), Rijeka (10), and in Zagreb (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 2007 in source Encyclopaedia of Croatian Surnames.