Calau (German pronunciation: [ˈkaːlaʊ], Lower Sorbian: Kalawa, pronounced [ˈkalawa]) is a small town in the Oberspreewald-Lausitz district, in southern Brandenburg, in eastern Germany.

Many places are left to nature after recultivation, The Heinz Sielmann Foundation adopted numerous areas, others are managed near-natural and sustainably by the state forest administration.

There are only a few people with Sorbian roots living in Calau today, although the Sorbs were quite a large minority in 1843 with about 30.8 percent of the overall population.

September 2008) The transmitter station Calau, which belongs to the Deutsche Telekom radiates a variety of VHF-and TV-programmes of the rbb for Brandenburg.

[citation needed] Its radio mast is a reinforced concrete tower of 190 m height, the so-called "Langer Calauer", in the southwest of town.