In Croatia, Oltran families are Croats (from Nin ). In the past century, relatively most of Croatian residents bearing this family name were born in Nin and Zadar.
Prevalence
About 40 people with faimily name Oltran live in Croatia today, in 15 households. There were 20 of them in the middle of the past century, and their number doubled. They are located in 6 Croatian counties, in 6 cities and another small place , mostly in Nin (15), Cakovec (<10), Zadar (<5), Mali Losinj on the Island of Losinj (<5), and in Knin (<5).
Outside Croatia
At least four families with this surname emigrated from Croatia to Australia (3) and the United States (1). Family name Oltran is present in two countries on two continents. The family name "Oltran " is used by few people in the United States.
