Oriovac is a village and municipality in Brod-Posavina County, Croatia. Its coordinates are 45°9′58″N 17°45′36″E / 45.16611°N 17.76000°E. It has 6,559 inhabitants in 2001.
The municipality is divided in 10 naselja:
to be expanded
Until 1918, Oriovac (named ORIOWACZ before 1850) was part of the Austrian monarchy (Kingdom of Croatia-Slavonia after the compromise of 1867), in the Slavonian Military Frontier, Gradiskaner Regiment N°VIII before its dissolution in 1881.
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