In Croatia, Marnić families are Croats (from Dubrovnik area ). In the past century, relatively most of Croatian residents bearing this family name were born in Dubrovnik and in Dubrovnik area.
Prevalence
Only a few people with faimily name Marnić live in Croatia today, in five households only. There were 20 of them in the middle of the past century, and their number halved. They are located in only four naselja i to in Dubrovnik (<5), Novaki in Samobor area (<5), Zagreb (<5), and in Dubravka in Dubrovnik area (<5).