Steinau

Steinau can refer to:


 * Steinau an der Straße, a town in Hesse, Germany
 * Steinau, Lower Saxony, a town in Lower Saxony, Germany
 * Steinau an der Oder, the German name for Ścinawa, a town in southwestern Poland
 * Steinau, the German name for Stonava, a village in the Czech Republic
 * Two tributaries of the Sieber in Osterode am Harz district in Germany:
 * Große Steinau
 * Kleine Steinau
 * The Silesian Duchy of Steinau