Four commissioned ships of the United States Navy have borne the name USS Louisiana in honor of the 18th state.
The first Louisiana[?] was a
a sloop that served in the War of 1812.
The second Louisiana[?] was a sidewheel steamer that served in the American Civil War.
The third Louisiana was a
Connecticut-class battleship[?].
The fourth ship to be given the name Louisiana was a Montana-class battleship cancelled before her keel was laid down.
The fourth ship to be commissioned
Louisiana was an
Ohio-class submarine.
See also CSS Louisiana[?].