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(Dai Nippon Teikoku Kaigun)
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The following is the list of ships of the Imperial Japanese Navy, including ships that are no longer in service. For a list of ships of its successor, the Japan Maritime Self-Defense Force, see JMSDF Fleet.

Medieval warships

  • Atakebune, 16th century coastal battleships.
  • Red seal ships – Around 350 armed sailships, commissioned by the Bakufu in the early 17th century, for Asian and South-East Asian trade.
  • San Buena Ventura (1607) – Built by William Adams for Tokugawa Ieyasu. Crossed the Pacific in 1610.
  • San Juan Bautista (1614) – One of Japan's first Western-style sail warships, transported the embassy of Hasekura Tsunenaga to America in 1614.

Early modern warships

Western-style sail warships

Shohei Maru (1854)

Kanrin Maru (1855)

Steam warships

Corvettes and gunboats


Kotetsu (1864)

  • Kōtetsu, (1864–1888) – Japan's first ironclad warship, later renamed Azuma (ex-CSS Stonewall)
  • Fusō (1877–1910)
  • Tosa class
    • Kaga (1921 – converted to an aircraft carrier)
    • Tosa (cancelled 1922)

Yamato (1940)

Seaplane tenders

Aircraft carriers

Hosho (1921)

Taihō (1943).


Protected Cruisers





Dispatch Vessels


Light Cruisers


  • ex-German cruisers as prize of World War I
    • Y (1909, ex-German Augsburg, 1920–1922)




Armored cruisers





  • Amagi class
    • Amagi (not completed)
    • Akagi (converted to aircraft carrier)
    • Atago (not launched)
    • Takao (not launched)


Heavy Cruisers




  • Ibuki class
    • Ibuki (1943; converted to aircraft carrier)
    • Haogi (No. 301) (Canceled 1942)


1st Class Destroyers

2nd Class Destroyers

Torpedo Boats

River Gunboats

Patrol Vessels

  • Type I submarine chaser (驅潛特務艇第一號型): Over 200 built during World War II, 81 lost.

List of IJN Patrol Vessels can be found here at [1]



1st Class Submarines
  • Junsen class
    • J1 type,Junsen 1 gata (巡潜Ⅰ型?), 4 units, I-1, I-2, I-3, I-4.
    • J1M type,Junsen 1 gata kai (巡潜Ⅰ型改?), I-5.
    • J2 type,Junsen 2 gata (巡潜Ⅱ型?), I-6.
    • J3 type,Junsen 3 gata (巡潜Ⅲ型?), 2 units, I-7, I-8.
  • Kou class
    • A1 type, Kou gata(S35) (甲型 (S35)?), 3 units, I-9, I-10, I-11.
    • A2 type, Kou gata(S35B) (甲型 (S35B)?), I-12.
    • AM type, Kou gata(S35G) (甲型 (S35G)?), 2 units, I-13, I-14.
  • Otu class
    • B1 type,Otu gata(S37) (乙型 (S37)?), 20 units, I-15, I-17, I-19, I-21, I-23, I-25, I-26, I-27, I-28, I-29, I-30, I-31, I-32, I-33, I-34, I-35, I-36, I-37, I-38, I-39.
    • B2 type,Otu gata(S37B) (乙型 (S37B)?), 6 units, I-40, I-41, I-42, I-43, I-44, I-45.
    • B3 type,Otu gata(S37C) (乙型 (S37C)?), 3 units, I-54, I-56, I-58.
  • Hei class
    • C1 type,Hei gata(S38) (丙型 (S38)?), 5 units, I-16, I-18, I-20, I-22, I-24.
    • C2 type,Hei gata(S38B) (丙型 (S38B)?), 3 units, I-46, I-47, I-48.

C3 type submarine I-55

    • C3 type,Hei gata(S37D) (丙型 (S37D)?), 3 units, I-52, I-53, I-55.
  • Tei class
    • D1 type,Tei gata(S51/S51B) (丁型 (S51/S51B)?), 12 units, I-361, I-362, I-363, I-364, I-365, I-366, I-367, I-368, I-369, I-370, I-371, I-372(S51B).
    • D2 type,Tei gata kai(S51C) (丁型改 (S51C)?), I-373.
  • Kaidai class
    • KD1 type,Kaidai 1 gata (海大Ⅰ型?), I-51.
    • KD2 type,Kaidai 2 gata (海大Ⅱ型?), I-152(52).
    • KD3a type,Kaidai 3 gata a (海大Ⅲ型a?), 4 units, I-153(53), I-154(54), I-155(55), I-158(58).
    • KD3b type,Kaidai 3 gata b (海大Ⅲ型b?), 5 units, I-156(56), I-157(57), I-159(59), I-60, I-63.
    • KD4 type,Kaidai 4 gata (海大Ⅳ型?), 3 units, I-61, I-162(62), I-164(64),
    • KD5 type,Kaidai 5 gata (海大Ⅴ型?), 3 units, I-165(65), I-166(66), I-67,
    • KD6a type,Kaidai 6 gata a (海大Ⅵ型a?), 6 units, I-168(68), I-169(69), I-70, I-171(71), I-172(72), I-73.
    • KD6b type,Kaidai 6 gata b (海大Ⅵ型b?), 2 units, I-174(74), I-175(75).
    • KD7 type,Kaidai 7 gata (海大Ⅶ型?), 10units, I-176(76), I-177, I-178, I-179, I-180, I-181, I-182, I-183, I-184, I-185.
  • Toku type,Toku gata (特型?), 3 units, I-400, I-401, I-402 (I-404 not launched, I-405 not completed).
  • Senkou dai type,Senkou-dai (潜高大?), 3 units, I-201, I-202, I-203 (I-204 to I-208 not completed).
  • Senho type,Senho (潜補?), I-351 (I-352 not completed).
  • Kiraisen (Mine layer) type,Kiraisen (機雷潜?), 4 units I-121, I-122, I-123, I-124.
  • Captured German submarines, 6 units, I-501 (U-181), I-502 (U-862), I-503 (UIT-24), I-504 (UIT-25), I-505 (U-219), I-506 (U-195).
2nd Class Submarines

Kaichu type submarine RO-33

  • Kaichu type, 20 units, RO-33, RO-34, RO-35, RO-36, RO-37, RO-38, RO-39, RO-40, RO-41, RO-42, RO-43, RO-44, RO-45, RO-46, RO-47, RO-48, RO-49, RO-50, RO-55, RO-56
  • K1 type
  • F1 type
  • L1 type
  • K2 type
  • L2 type
  • K3 type
  • F2 type
  • L3 type
  • K4 type
  • KT type
  • L4 type
  • KS type
  • SS type
  • STS type
3rd Class Submarines

Ko-hyoteki-class submarine

  • Ko-hyoteki class, 50 units.
  • Kairyu class, about 250 units (750 planned).
  • Kaiten class, about 1000 units.
  • C1 type
  • C2 type
  • S1 type
  • Kawasaki class
  • S2 type
  • No.71, Dai 71 gou-kan (第71号艦?),71-gou
Army submarines
  • Yu1 class
  • Yu1001 class
  • Yu2001 class
Other submarines

Suicide boats

  • Shinyo, 6,200 units.


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