CSS Tennessee was a casemate ironclad ram built for the Confederate Navy during the American Civil War. She served as the flagship of Admiral Franklin Buchanan, commander of the Mobile Squadron, after commissioning. The ship was captured by the Union Navy during the Battle of Mobile Bay in 1864 and commissioned to participate in the subsequent Siege of Fort Morgan. She was decommissioned after the end of the war and sold for scrap in 1867.
