The German capital of Berlin lies on which river?

The Spree is a river that flows through the Saxony, Brandenburg and Berlin states of Germany, and in the Ústí nad Labem region of the Czech Republic. Approximately 400 kilometres (250 mi) in length, it is a left bank tributary of the River Havel, which itself flows into the Elbe and then the North Sea. It is the river on which the original centre of Berlin was built.

The reach of the river between the Dämeritzsee and Müggelsee to the east of Berlin is known as the Müggelspree.

The name of the river Spree was recorded by Thietmar of Merseburg as Sprewa (either from Middle German sprejen, sprewen, High German sprühen meaning to spray water, or rather from spreizen meaning to spread, referring to the numerous bifurcations). People living at the Spree river (Anwohner) were in old German language (and are still) called Spreewaner.