Slavonski Šamac is a village and municipality located on the river Sava in Croatia.

It is located in Brod-Posavina county in the region of Slavonia.

On the opposite side of the river lies the Bosnian town of Šamac.

Slavonski Šamac is located on the D7 road, a part of the European route E73.

According to the 2011 census, the municipality had a population of 2,169 with 996 in the settlement of Slavonski Šamac itself.