Lübbenau (German pronunciation: [lʏbəˈnaʊ], Lower Sorbian: Lubnjow [ˈlubnʲɔw]; officially Lübbenau/Spreewald, L.S.

Lubnjow/Błota [ˈbwɔta] (meaning Lübbenau/Spree Forest)) is a town in the Upper Spree Forest-Lusatia District of Brandenburg, Germany.

It is located in the bilingual German/Sorbian region of (Lower) Lusatia, on the river Spree, where this forms a large inland delta surrounded by woodland, called "Spree Forest", about 82 km (51 mi) southeast of Berlin.

Departing from the old town center, visitors can explore the marina with its traditional boats, or a castle which set in a nicely arranged park, including an orangerie with a cafe and a hotel.

There are cycling routes to nearby villages, and boat rides are popular with tourists.