According to the written documents, Bosanska Gradiška was first mentioned a little more than 700 years ago under the name of Gradiški Brod. However, the life in the area of the present town, its immediate and wider environs, dates back to the prehistoric times. In the time of Roman Empire, the city named Serbinum (Servitium) existed at this location. Some Serbs consider it to be the oldest Serb settlement ever recorded in the Balkans.

Bosanska Gradiska

Bosanska Gradiška was mentioned as a free town. In the Middle Ages, Bosanska Gradiška had a major importance as the place where the Sava river used to be crossed.

The people of this region who lived to see the end of the Second World War found themselves in looted places and deserted hearths. At battlefields and the death camps in Jasenovac, Stara Gradiška, Jastrebarsko, and other places of torture, some 13,000 Serbs lost their lives among them about 4,500 children below fifteen years of age.