Japanese Battleship Nagato Country: Japan Type: Battleship Service: 1920 - 1945 Laid down: 28 August 1917 Launched: 9 November 1919 Commissioned: 15 November 1920 Struck: 15 September 1945 Fate: Sunk 25 July 1946.

The Nagato class battleships were two battleships of the Imperial Japanese Navy. They were the first battleships in the world to mount 16 inch (410 mm) guns, and their armour protection and speed made them the most powerful capital ships at the time of their commissioning. They were extensively modified in the the interwar period.

Nagato was a battleship of the Imperial Japanese Navy, the lead ship of her class. She was the first battleship in the world to mount 16 inch (410 mm) guns. She was the flagship of Admiral Isoroku Yamamoto during the attack on Pearl Harbor. During the remainder of World War II, she saw action only once, during the Battle of Leyte Gulf. Surviving postwar, Nagato used in atomic bomb tests and sunk on 25 July 1946.