The Italian language is spoken in at least one country.
Bosnia and Herzegovina ( [ ˈbɒzniə_ənd_ˌhɛərtsəɡoʊˈviːnə , _ - ˌhɜːrt - , _ - ɡə - ] or [ ˌhɜːrtsəˈɡɒvᵻnə ] B&H ; Bosnian , Croatian , Serbian : Bosna i Hercegovina / Боснa и Херцеговина [ bôsna i xěrt͡seɡoʋina ] ) , sometimes called Bosnia-Herzegovina ( BiH ) , and , in short , often known informally as Bosnia , is a country in Southeastern Europe located on the Balkan Peninsula . Croatia ( [ kroʊˈeɪʃə ] ; Hrvatska [ xř̩ʋaːtskaː ] ) , officially the Republic of Croatia ( [ Republika Hrvatska , links = no ] , ) , is a sovereign state between Central Europe , Southeast Europe , and the Mediterranean . Italian language . Italian is an official language in Italy , Switzerland , San Marino , Vatican City and western Istria ( in Slovenia and Croatia ) .