In Croatia, Ugljanac families are Croats (from Orahovica area ). In the past century, relatively most of Croatian residents bearing this family name were born in Orahovica area and in Nasice area.
Prevalence
About 10 people with faimily name Ugljanac live in Croatia today, in two households only. There were 10 of them in the middle of the past century, and their number remains constant. They are located in only two naselja i to in Djurdjenovac in Nasice area (<10) and Vucjak Fericanacki in Orahovica area (<5).
Outside Croatia
Family name Ugljanac is present in this form only in Croatia.