In Croatia, Antonina families are Croats (from Dugi (Long) Island ). In the past century, relatively most of Croatian residents bearing this family name were born in Zadar and on Dugi, Long Island.
Prevalence
About 60 people with faimily name Antonina live in Croatia today, in 30 households. There were 50 of them in the middle of the past century, and their number increased by 40 percent. They are located in 7 Croatian counties, in 7 cities and 6 other places, mostly in Zadar (25), Zman on Dugi (Long) Island (15), Cres on the Island of Cres (<10), Gat (<10), and in Jertovec in Zlatar area (<10).
Outside Croatia
Family name Antonina is present in four countries on two continents.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1929 in source Emigration Commission Zagreb.