Stara Gradiška is a village and a municipality in the Brod-Posavina county of Croatia. It has 542 residents, while the municipality has 1,717 (2001), in six other smaller villages. It is located on the left bank of the river Sava, across Bosanska Gradiška in Bosnia and Herzegovina.
The first word in the name means Old, and there's also a New Gradiška nearby, the city of Nova Gradiška.
A prison was first established at Stara Gradiška in the 1920s. During World War II, the Ustaša regime used it as the Stara Gradiška concentration camp, a part of the Jasenovac complex. From 1945 until the late 1980s the prison at Stara Gradiška held political prisoners of the communist regime. In 1991 the prison was officially shut down by the democratic Republic of Croatia. The municipality plans to turn the site into a museum
