Istria (/ˈɪstriə/ IST-ree-ə; Croatian and Slovene: Istra; Italian and Venetian: Istria; Istriot: Eîstria; Istro-Romanian: Istria; Latin: Histria; Ancient Greek: Ἱστρία) is the largest peninsula within the Adriatic Sea. Located at the top of the Adriatic between the Gulf of Trieste and the Kvarner Gulf, the peninsula is shared by three countries: Croatia, Slovenia, and Italy, 90% of its area being part of Croatia. Most of Croatian Istria is part of Istria County.