The USS Mount Whitney (LCC/JCC 20) is a Blue Ridge class command ship of the US Navy; it is the flagship of the Sixth Fleet. She is also the command and control ship for the Commander Joint Command Lisbon and the Commander Striking Force NATO. She had previously served for years as the COMSTRIKFLTLANT(NATO Designation) / Second Fleet's command ship. She was classified as the LCC-20 on 1 January 1969, and she was laid down on 8 January by Newport News Shipbuilding & Drydock Company, Newport News, Virginia.