The Siege of Knin (Croatian: Opsada Knina) was a siege of Knin Fortress in the Kingdom of Croatia by the Ottoman Empire. After two failed attempts in 1513 and 1514, Ottoman forces led by Gazi Husrev-beg, sanjak-bey (governor) of the Sanjak of Bosnia, laid the final siege of Knin in May 1522. Frequent confrontations and raids of its surroundings left Knin devastated, so it had only a small garrison at the time. Mihovil Vojković was the commander of Knin's defense and he surrendered the fortress on 29 May in exchange for a free evacuation of his men and Knin's residents. The Ottomans eventually made Knin the center of Sanjak Lika-Krka.