Sibenik, city, southwestern Croatia, on the Adriatic Sea. Sibenik is a port with manufactures that include textiles and aluminum and other metals. Among the city's notable structures are a Roman Catholic cathedral (begun early 15th century) and a 12th-century fortress. The city was alternately held by Venice and Hungary from the early 12th century. From 1815 it was part of Austria. The city was briefly part of Italy before being incorporated into the Kingdom of the Serbs, Croats, and Slovenes (later renamed Yugoslavia) in 1921. In 1991, Croatia, once a constituent republic of Yugoslavia, became an independent nation. Population 41,012 (1991).
