Roić families are Croats and they are mostly from the Island of Hvar. In the past century, relatively most of Croatian residents bearing this family name were born in Split and on the Island of Hvar.
Prevalence
About 150 people with faimily name Roić live in Croatia today, in 70 households. There were 120 of them in the middle of the past century, and their number increased by 20 percent. They are only located in in 9 Croatian cities and 5 other places, mostly in Stari Grad on the Island of Hvar (40), Split (40), Zagreb (30), Hvar on the Island of Hvar (<10), and in Gradac in Ploce area (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over twenty times, the first time 1729 in source Catholic Church Parish Records.