Smoljo families are Croats and they are mostly from Sinj. In the past century, relatively most of Croatian residents bearing this family name were born in Sinj and in Vinkovci area. In Gljev in Sinj every seventh inhabitant had the family name Smoljo.
Prevalence
About 570 people with faimily name Smoljo live in Croatia today, in 210 households. There were 260 of them in the middle of the past century, and their number doubled. They are located in the most of Croatian counties, in 26 cities and 36 other places, mostly in Split (65), Zagreb (60), Otok in Sinj area (55), Lucane (55), and in Gljev (50).
Outside Croatia
Family name Smoljo is present in 12 countries on three continents.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.