Solska Wilderness (Polish: Puszcza Solska) is a large forest complex in southern part of the Lublin Voivodeship, about 100 km south of Lublin, Poland. It occupies an area north of the San and south of the Roztocze Upland. The forest is mostly made of coniferous trees, part of them having been artificially planted. Its total area is 124 000, which makes it the second biggest forest complex of Poland (after the Lower Silesian Wilderness). Until late Middle Ages, the Solska Wilderness was connected with another huge complex, the Sandomierz Wilderness, but deforestation separated these two complexes from each other.
Solska Wilderness is rich in landscape parks (such as the Puszcza Solska Landscape Park), nature reserves and peat bogs. Main rivers that cross the area are the Tanew, and the Lada and main cities are Bilgoraj, Tomaszow Lubelski and Jozefow. The forest is crossed by several routes, including the main national road number 17, which goes from Warsaw, via Lublin, to Lviv. Also, a Zwierzyniec - Belzec rail line goes through it.