In Croatia, Bassan families are Italians (from Opatija area ). In the past century, relatively most of Croatian residents bearing this family name were born in Rijeka.
Prevalence
About 20 people with faimily name Bassan live in Croatia today, in one household only. There were 20 of them in the middle of the past century, and their number remains constant. They are located in only one small Croatian place, in Lovran in Opatija area (<5).
Outside Croatia
At least three families with this surname emigrated from Croatia to the United States (2) and Australia (1). Family name Bassan is present in 53 countries worldwide. "Basshan " is used by few people in the United States.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.