Kampinos Forest (Polish: Puszcza Kampinoska) is a large forest complex located in Masovian Voivodeship, west of Warsaw in Poland.
It covers a part of the ancient valley of the Vistula basin, between the Vistula and the Bzura rivers.
Once a forest covering 670 km² of central Poland, it currently covers roughly 240 km².
Most of the Kampinos forest is currently protected within Kampinos National Park (Kampinoski Park Narodowy).
Among the distinctive features of the area is a combination of sandy dunes and marshes, with dense pine and spruce forest.
The forest is a Natura 2000 EU Special Protection Area.
Coordinates: 52°19′25″N 20°35′54″E / 52.32361°N 20.59833°E