List of U-boats of Germany
Germany has commissioned over 1,500 U-boats () into its various navies from 1906 to the present day. The submarines have usually been designated with a U followed by a number, although World War I coastal submarines and coastal minelaying submarines used the UB and UC prefixes, respectively. When Germany resumed building submarines in the 1930s, the numbering of the submarines was restarted at 1. The renumbering was restarted at 1 a third time when Germany resumed building submarines in the 1960s. World War I–era U-boats 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—, , , and —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 U-boats designed primarily for deep water service were designated with a U prefix and numbered up to 167. Type U 1 Type U 2 Type U 3 Type U 5 Type U 9 Type U 13 Type U 16 Type U 17 Type U 19 Type U 23 Type U 27 Type U 31 Type U 43 Type U 51 Type U 57 Type U 63 Type U 66 (Type UD) 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. Type UE I (Type U 71) Type U 81 Type U 87 Type U 93 Type U 115 Type UE II (Type U 117) Type U 127 Type Large MS (Type U 135) Type U 139 Type U 142 Type U 151 (Deutschland Class submarine) Type U 158 UB coastal U-boats 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. Type UB I UB-1 UB-2 UB-3 UB-4 UB-5 UB-6 UB-7 UB-8 UB-9 UB-10 UB-11 UB-12 UB-13 UB-14 UB-15 UB-16 UB-17 Type UB II UB-18 UB-19 UB-20 UB-21 UB-22 UB-23 UB-24 UB-25 UB-26 UB-27 UB-28 UB-29 UB-30 UB-31 UB-32 UB-33 UB-34 UB-35 UB-36 UB-37 UB-38 UB-39 UB-40 UB-41 UB-42 UB-43 UB-44 UB-45 UB-46 UB-47 Type UB III UB-48 UB-49 UB-50 UB-51 UB-52 UB-53 UB-54 UB-55 UB-56 UB-57 UB-58 UB-59 UB-60 UB-61 UB-62 UB-63 UB-64 UB-65 UB-66 UB-67 UB-68 UB-69 UB-70 UB-71 UB-72 UB-73 UB-74 UB-75 UB-76 UB-77 UB-78 UB-79 UB-80 UB-81 UB-82 UB-83 UB-84 UB-85 UB-86 UB-87 UB-88 UB-89 UB-90 UB-91 UB-92 UB-93 UB-94 UB-95 UB-96 UB-97 UB-98 UB-99 UB-100 UB-101 UB-102 UB-103 UB-104 UB-105 UB-106 UB-107 UB-108 UB-109 UB-110 UB-111 UB-112 UB-113 UB-114 UB-115 UB-116 UB-117 UB-118 UB-119 UB-120 UB-121 UB-122 UB-123 UB-124 UB-125 UB-126 UB-127 UB-128 UB-129 UB-130 UB-131 UB-132 UB-133 UB-134 UB-135 UB-136 UB-137 UB-138 UB-139 UB-140 UB-141 UB-142 UB-143 UB-144 UB-145 UB-146 UB-147 UB-148 UB-149 UB-150