Mornar families are Croats and they are mostly from Sinj area. In the past century, relatively most of Croatian residents bearing this family name were born in Split and in Sinj area.
Prevalence
About 160 people with faimily name Mornar live in Croatia today, in 60 households. There were 110 of them in the middle of the past century, and their number increased by 40 percent. They are located in four Croatian counties, in 7 cities and 6 other places, mostly in Split (65), Kastel Stafilic (40), Kastel Stari (20), Pribude in Sinj area (15), and in Kastel Sucurac (<10).
Outside Croatia
Family name Mornar is present in 11 countries on four continents. The family name "Mornar " is used by some 80 people in the United States , small number in Germany , and small number in France.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 2007 in source Encyclopaedia of Croatian Surnames.