Three naval vessels of Japan have been named Kongō:

• Japanese ironclad Kongō (1877–1909), a Kongō-class ironclad of the Imperial Japanese Navy.
• Japanese battleship Kongō (1912–1945), the nameship of her class of battlecruisers, which were later modified into battleships.
• JS Kongō (DDG-173), launched in 1991, also the nameship of her class of destroyers.

Additionally, two Japanese ships have been named Kongō Maru:

• Kongō Maru (1934), passenger-cargo ship launched in 1934, sunk in 1942
• Kongō Maru (1936), passenger-cargo ship launched in 1936, wrecked in 1951