''U-3'' may refer to one of the following German

submarine A submarine (often shortened to sub) is a watercraft capable of independent operation underwater. (It differs from a submersible, which has more limited underwater capability.) The term "submarine" is also sometimes used historically or infor ...

s: * , lead ship of the Type U-3 class of submarines; launched in 1909 and served in the

First World War World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting to ...

as a training submarine; surrendered in 1918 ** During the First World War, Germany also had these submarines with similar names: *** , a Type UB I submarine launched in 1915 and sunk on 23 May 1915 *** , a Type UC I submarine launched in 1915 and sunk on 27 May 1916 * , a Type IIA submarine that served in the

Second World War World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...

and was scrapped in 1945 * , a Type 201 submarine of the

Bundesmarine The German Navy (, ) is part of the unified (Federal Defense), the German Armed Forces. The German Navy was originally known as the ''Bundesmarine'' (Federal Navy) from 1956 to 1995, when ''Deutsche Marine'' (German Navy) became the official ...

that was launched in 1964; loaned out to

Royal Norwegian Navy The Royal Norwegian Navy () is the branch of the Norwegian Armed Forces responsible for navy, naval operations of Norway, including those of the Norwegian Coast Guard. , the Royal Norwegian Navy consists of approximately 3,700 personnel (9,450 i ...

from 1964 to 1966; later broken up ''U-3'' or ''U-III'' may also refer to: * , lead boat of the submarines for the Austro-Hungarian Navy

See also