Five ships of the United States Navy

United States Navy

The United States Navy is the naval warfare service branch of the United States Armed Forces and one of the seven uniformed services of the United States. The U.S. Navy is the largest in the world; its battle fleet tonnage is greater than that of the next 13 largest navies combined. The U.S...

 have borne the name USS Louisiana in honor of the 18th state

Louisiana

Louisiana is a state located in the southern region of the United States of America. Its capital is Baton Rouge and largest city is New Orleans. Louisiana is the only state in the U.S. with political subdivisions termed parishes, which are local governments equivalent to counties...

.
, was a sloop that served in the War of 1812
, was a propeller-driven steamer that served in the American Civil War
, was a Connecticut-class battleship

Connecticut class battleship

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 commissioned 2 June 1906 and decommissioned 20 October 1920
was a Montana-class battleship

Montana class battleship

The Montana-class battleships of the United States Navy were planned as successors to the , being slower but larger, better armored, and having superior firepower...

 canceled before her keel was laid down
is an Ohio-class submarine

Ohio class submarine

The Ohio class is a class of nuclear-powered submarines used by the United States Navy. The United States has 18 Ohio-class submarines:...

 currently in active service

• CSS Louisiana
  CSS Louisiana
  CSS Louisiana was an ironclad ship of the Confederate States Navy built to aid in defending the lower Mississippi River from invasion by the Union Navy during the American Civil War. She took part in one major action of the war, the Battle of Forts Jackson and St...
  
  , was commissioned by the Confederate States of America during the American Civil War