The White Elster (, ) is a long river in central Europe, right tributary of the Saale. Its source is in the westernmost part of the Czech Republic, near Aš. After a few kilometres, it flows into eastern Germany. In Germany, it flows through the states of Saxony, Thuringia and Saxony-Anhalt. The White Elster flows through the cities of Plauen, Greiz, Gera, Zeitz, Pegau and Leipzig. It flows into the river Saale in Halle.