In Croatia, Tiro families are mainly Croats (from the Island of Korcule ), equally Bosniaks (from Western Bosnia ). In the past century, relatively most of Croatian residents bearing this family name were born in Western Bosnia (Tomislavgrad area) and in Split.
Prevalence
About 10 people with faimily name Tiro live in Croatia today, in 6 households. They are located in 6 Croatian counties, in 6 cities and another small place , mostly in Blato on the Island of Korcula (<10), Zagreb (<5), Dugo Selo (<5), Porec (<5), and in Split (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.