The State Archives in Osijek (Croatian: Državni arhiv u Osijeku) is the primary public institution responsible for preservation of archival materials in the Osijek-Baranja County located in Osijek in eastern Croatia.

[2] The State Archives in Osijek houses approximately 1,500 collections and archives, totaling over 8,000 linear meters of material and more than 50,000 photographs.

[2] The archive was established after the end of World War II in Yugoslavia in 1947 by the decision of People's Republic of Croatia authorities.

[3] In December of 1991, during the Croatian War of Independence, the archive together with other institutions in Croatia was in danger of devastation motivating calls from international scholars for protection.

[4]