Lower Silesian Wilderness (Polish: Bory Dolnośląskie German: Niederschlesische Heide) is the largest continuous forest of Poland, with total area of 1650 square kilometers. It is located in southwestern Poland, in the Lower Silesian Voivodeship and the Lubusz Voivodeship, near border with Germany. Western boundary of the wilderness is made by the Nysa Łużycka, behind which spreads a German forest, Muskauer Heide. It is mostly covered by pine trees.
The area of the Lower Silesian Wilderness is predominantly flat, with the biggest point, the hill called Dębniak measuring only 238 meters above sea level. The wilderness is subdivided into several smaller forests, and it is crossed by a number of rivers, including the Kwisa, the Bóbr, and the Szprotawa. Among most important municipal centers of the area of the wilderness, there are Bolesławiec, Węgliniec, Żagań, Żary, Szprotawa, and Pieńsk.
The Lower Silesian Wilderness is very popular among hunters, as it is rich in such animals as deer, wild pigs, hares, foxes, and wolves.