Forst (Lausitz) (Lower Sorbian: Baršć) is a town in Brandenburg, Germany. It lies east of Cottbus, on the river Lausitzer Neiße which is also the German-Polish border, the Oder-Neisse line. It is the capital of the Spree-Neiße district. It is known for its rose garden and textile museum. The town's population is 18,651. In Forst, there is a railway bridge across the Neiße belonging to the line Cottbus–Żary which is serviced by regional trains and a EuroCity train between Hamburg and Kraków (2011). There is also a road bridge across the river north of Forst.