The Dwangwa River in Malawi is a tributary river for Lake Nyasa. It flows for approximately 100 miles (160 km).

The river's source is in the Kasungu National Park, in Malawi's central plateau. It flows north-easterly from this plateau through an ancient valley. The river's mouth flows out of a more recently cut gorge, into the Lake. It also flows through the Bana Swamp