List of U-boats of Germany

There were some 380 U-boats commissioned into the Kaiserliche Marine in the years before and during World War I. Although the first four German U-boats—U-1, U-2, U-3, and U-4—were commissioned before 1910, all four served in a training capacity during the war. German U-boats used during World War I were divided into three series. The U designation was generally reserved for ocean-going attack torpedo U-boats. The UB designation was used for coastal attack U-boats, while the UC designation was reserved for coastal minelaying U-boats.

U-boats designed primarily for deep water service were designated with a U prefix and numbered up to 167.

• SM U-1

• SM U-2

• SM U-3
• SM U-4

• SM U-5
• SM U-6
• SM U-7
• SM U-8

• SM U-9
• SM U-10
• SM U-11
• SM U-12

• SM U-13
• SM U-14
• SM U-15

• SM U-16

• SM U-17
• SM U-18

• SM U-19
• SM U-20
• SM U-21
• SM U-22

• SM U-23
• SM U-24
• SM U-25
• SM U-26

• SM U-27
• SM U-28
• SM U-29
• SM U-30

• SM U-31
• SM U-32
• SM U-33
• SM U-34
• SM U-35
• SM U-36
• SM U-37
• SM U-38
• SM U-39
• SM U-40
• SM U-41

• SM U-43
• SM U-44
• SM U-45
• SM U-46
• SM U-47
• SM U-48
• SM U-49
• SM U-50

• SM U-51
• SM U-52
• SM U-53
• SM U-54
• SM U-55
• SM U-56

• SM U-57
• SM U-58
• SM U-59
• SM U-60
• SM U-61
• SM U-62
• SM U-99
• SM U-100
• SM U-101
• SM U-102
• SM U-103
• SM U-104

• SM U-63
• SM U-64
• SM U-65

The Type U 66 submarines were originally constructed for Austro-Hungary as the U-7 class, but were sold to Germany at the start of WWI.

Coastal attack torpedo U-boats were smaller craft intended for operation closer to land. They were designated with a UB prefix and numbered up to 155.

Coastal minelaying U-boats were smaller vessels intended to mine enemy harbors and approaches. They were designated with a UC prefix and numbered up to 114.

Thirty-five Type UC III submarines were planned, but only 25 were completed. Nine of these (UC-106 to UC-114) were never commissioned and were awarded to the United Kingdom and France and broken up in 1921. Ten of these (UC-80 to UC-89) were broken up at yard

At the outbreak of World War I Germany took charge of a number of submarines under construction in German shipyards for other countries.

• SM UA (ex-Norwegian A class submarine A-5)
• U-66 to U-70 (ex-Austro-Hungarian U-7 class U-7 to U-11)
• US-1 (ex-Russian Bars class Burevestnik), only test run - not in service
• US-2 (ex-Russian Bars class Orlan), Commissioned later abandoned to White Russian Forces
• US-3 (ex-Russian Bars class Utka), only test run - not in service
• US-4 (ex-Russian Bars class Gagara), only test run - not in service

In the World War II era, Germany commissioned some 1,250 U-boats into the Kriegsmarine.

Originally intended as long-range minelayers, the Type X were later used as long-range cargo transports.

The Type XI was a planned artillery boat, armed with four 128-mm guns in two twin turrets along with an Arado Ar 231 floatplane. Four boats were laid down in 1939 but were cancelled at the outbreak of WWII.

• U-112
• U-113
• U-114
• U-115

The Type XIV submarine was a shortened version of the Type IXD and used as tankers. Twenty-four were planned, but only 10 were commissioned; three (U-491 to U-494) were cancelled before completed and eleven were never laid down. This type was nicknamed Milchkuh (milk cow).

• U-792
• U-793
• U-794
• U-795

Twelve Type XVIIB submarines were planned, but only three were completed; three were cancelled at the end of the war before completion and six were cancelled in favor of the Type XXI submarine.

• U-1405
• U-1406
• U-1407

• U-798

The Type XVIII was a projected attack boat using the Walter propulsion system. Two boats were laid down in 1943, but construction was cancelled in March 1944.

• U-796
• U-797

The range of U-5000 to U-6442 was specifically allocated to German midget submarines. The following Seehund Type XXVIIB U-boats were entered into the Kriegsmarine registry as commissioned vessels

Germany captured and commissioned 14 submarines from six countries into the Kriegsmarine during World War II.

• Wilhelm Bauer (ex U-2540)

• List of U-boats never deployed
• List of naval ships of Germany
• List of ships of the Second World War
• List of submarines of the Second World War

• List of U-boats at U-boat.net