Serbian Autonomous Oblast (SAO) of Bosanska Krajina () was a Self-proclaimed Serbian autonomous region (oblast) in Bosnia and Herzegovina. It was sometimes called the Autonomous Region of Krajina ( / Аутономна oбласт Крајина). SAO Bosanska Krajina was located in the geographical region named Bosanska Krajina. Its capital was Banja Luka. The region was subsequently included into Republika Srpska.