The Rospuda [rɔsˈpuda] is a small river in north-eastern Poland. It flows through the Suwałki Region of Poland, including the north-western part of the large Augustów Primeval Forest wilderness area. Its continuation, the Netta, is a tributary of the Biebrza. Around 2006 the river was threatened by planned construction of the Augustów bypass expressway, which was to cut across the protected wilderness area in the valley.