Count Josip Jelačić von Bužim was a Croatian lieutenant field marshal in the Imperial Austrian Army and politician. He was the Ban of Croatia between 23 March 1848 and 19 April 1859. He was a member of the House of Jelačić and a noted army general, remembered for his military campaigns during the Revolutions of 1848 and for his abolition of serfdom in Croatia.

Ban of Croatia was the title of local rulers or office holders and after 1102, viceroys of Croatia. From the earliest periods of the Croatian state, some provinces were ruled by bans as a ruler's representative (viceroy) and supreme military commander. In the 18th century, Croatian bans eventually became the chief government officials in Croatia.