In Croatia, Mandun families are Croats (from Dubrovnik area ). In the past century, relatively most of Croatian residents bearing this family name were born in Dubrovnik.
Prevalence
About 10 people with faimily name Mandun live in Croatia today, in four households only. There were 10 of them in the middle of the past century, and their number remains constant. They are located in only one small Croatian place, in Soline in Dubrovnik area (<10).
Outside Croatia
Family name Mandun is present in three countries on two continents.