Newport News Shipbuilding, voorheen Newport News Shipbuilding and Drydock Company (NNS) en Northrop Grumman Newport News (NGNN), is de grootste private scheepswerf van de Verenigde Staten. ###>Newport News Shipbuilding (NNS), originally "Newport News Shipbuilding and Drydock Company" (NNS&DD), was the largest privately owned shipyard in the United States prior to being purchased by Northrop Grumman in 2001.