List of ships of the Imperial Japanese Navy

The following is the list of ships of the Imperial Japanese Navy for the duration of its existence, 1868-1945. This list also includes ships before the official founding of the Navy and some auxiliary ships used by the Army. For a list of ships of its successor, the Japan Maritime Self-Defense Force, see List of active Japan Maritime Self-Defense Force ships and List of combatant ship classes of the Japan Maritime Self-Defense Force.

Medieval warshipsEdit

Early modern warshipsEdit

Western-style sail warshipsEdit

Steam warshipsEdit

Corvettes and gunboatsEdit


Kotetsu (1864)
Yamato (1940)

Seaplane tendersEdit

Aircraft carriersEdit

Hōshō (1921)


Protected cruisersEdit

Dispatch vesselsEdit

Light cruisersEdit

Armored cruisersEdit


Heavy cruisersEdit


1st Class destroyersEdit

2nd Class destroyersEdit

3rd Class destroyersEdit

Torpedo boatsEdit

River gunboatsEdit


Patrol vesselsEdit

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



1st Class submarinesEdit

  • Junsen class
    • Type J1, Junsen 1 gata (巡潜I型), 4 units, I-1, I-2, I-3, I-4.
    • Type J1M, Junsen 1 gata kai (巡潜I型改), I-5.
    • Type J2, Junsen 2 gata (巡潜II型), I-6.
    • Type J3, Junsen 3 gata (巡潜III型), 2 units, I-7, I-8.
  • Hei class
    • Type C1, Hei gata(S38) (丙型 (S38)), 5 units, I-16, I-18, I-20, I-22, I-24.
    • Type C2, Hei gata(S38B) (丙型 (S38B)), 3 units, I-46, I-47, I-48.
C3 type I-55
  • Tei class
    • Type D1, 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).
    • Type D2, Tei gata kai(S51C) (丁型改 (S51C)), I-373.
  • Kaidai class
    • Type KD1, Kaidai 1 gata (海大I型), I-51.
    • Type KD2, Kaidai 2 gata (海大II型), I-152(52).
    • Type KD3a, Kaidai 3 gata a (海大III型a), 4 units, I-153(53), I-154(54), I-155(55), I-158(58).
    • Type KD3b, Kaidai 3 gata b (海大III型b), 5 units, I-156(56), I-157(57), I-159(59), I-60, I-63.
    • Type KD4, Kaidai 4 gata (海大IV型), 3 units, I-61, I-162(62), I-164(64),
    • Type KD5, Kaidai 5 gata (海大V型), 3 units, I-165(65), I-166(66), I-67,
    • Type KD6a, 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.
    • Type KD6b, Kaidai 6 gata b (海大VI型b), 2 units, I-174(74), I-175(75).
    • Type KD7, Kaidai 7 gata (海大VII型), 10 units, I-176(76), I-177, I-178, I-179, I-180, I-181, I-182, I-183, I-184, I-185.
  • Sentoku type, Toku gata (特型), 3 units, I-400, I-401, I-402 (I-404 not launched, I-405 not completed).
  • Sentaka type, Sentaka (潜高), 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 submarinesEdit

  • Kaichū type
    • Type K1, Kaichū 1 gata (海中I型), 2 units, Ro-11, Ro-12.
    • Type K2, Kaichū 2 gata (海中II型), 3 units, Ro-13, Ro-14, Ro-15.
    • Type K3, Kaichū 3 gata (海中III型), 10 units, Ro-16, Ro-17, Ro-18, Ro-19, Ro-20, Ro-21, Ro-22, Ro-23, Ro-24, Ro-25.
    • Type K4, Kaichū 4 gata (海中IV型), 3 units, Ro-26, Ro-27, Ro-28.
    • Type KT (Toku-Chū), Kaichū 5 gata (海中V型), 5 units, Ro-29, Ro-30, Submarine No. 70, Ro-31, Ro-32.
    • Type K6, Kaichū 6 gata (海中VI型), 2 units, Ro-33, Ro-34.
    • Type KS (Sen-Chū), Kaichū 7 gata (海中VII型), 18 units, 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.
  • Type L
    • Type L1, Ro go jū 1 gata (L1型), 2 units, Ro-51, Ro-52.
    • Type L2, Ro go jū 2 gata (L2型), 4 units, Ro-53, Ro-54, Ro-55, Ro-56.
    • Type L3, Ro go jū 3 gata (L3型), 3 units, Ro-57, Ro-58, Ro-59.
    • Type L4, Ro go jū 4 gata (L4型), 9 units, Ro-60, Ro-61, Ro-62, Ro-63, Ro-64, Ro-65, Ro-66, Ro-67, Ro-68.
  • Ko Type, 18 units, Ro-100, Ro-101, Ro-102, Ro-103, Ro-104, Ro-105, Ro-106, Ro-107, Ro-108, Ro-109, Ro-110, Ro-111, Ro-112, Ro-113, Ro-114, Ro-115, Ro-116, Ro-117.
  • Sen'yu-Shō Type, 10 units, Ha-101, Ha-102, Ha-103, Ha-104, Ha-105, Ha-106, Ha-107, Ha-108, Ha-109, Ha-111 (Ha-110 and Ha-112 not completed)
  • Sentaka-Shō Type, 11 units, Ha-201, Ha-202, Ha-203, Ha-204, Ha-205, Ha-207, Ha-208, Ha-209, Ha-210, Ha-216 (Ha-206, Ha-211 to Ha-215, Ha-217 to Ha-279 not completed)
  • F1 type
  • F2 type
  • Captured German submarines, 2 units, Ro-500 (U-511), Ro-501 (U-1224).

3rd Class submarinesEdit

Army submarinesEdit

Other submarinesEdit

Suicide boatsEdit


External linksEdit

See alsoEdit