In Croatia, Brna families are Croats (from the Island of Rab ). In the past century, relatively most of Croatian residents bearing this family name were born on the Island of Rab and in Rijeka.
Prevalence
About 30 people with faimily name Brna live in Croatia today, in 11 households. There were 30 of them in the middle of the past century, and their number remains constant. They are located in four Croatian counties, four cities and threee other places, mostly in Banjol on the Island of Rab (15), Krapina (<10), Palit on the Island of Rab (<10), Cepin in Osijek area (<5), and in Zagreb (<5).
Outside Croatia
At least one family with this surname emigrated from Croatia to the United States. Family name Brna (including: Berna , Berná and Bernah ) is present in 59 countries worldwide. The family name "Brna " is used by some 400 people in Slovakia , about 200 in the United States , and some 60 people in Czech Republic.