German submarine U-14

U-14 may refer to one of the following German submarines:


 * SMU U-14 (Germany), was a Type U 13 submarine launched in 1911 and that served in the First World War until sunk on 5 June 1915
 * During the First World War, Germany also had these submarines with similar names:
 * SMU UB-14, a Type UB I submarine launched in 1915 and surrendered in November 1918
 * SMU UC-14, a Type UC I submarine launched in 1915 and sunk on 3 October 1917; while in Austro-Hungarian service in 1915, she was renamed U-18
 * GS U-14 (1935), a Type IIB submarine that served in the Second World War and was scuttled on 2 May 1945
 * GS U-14 (S193), a Type 206 submarine of the Bundesmarine that was launched in 1973 and scrapped in 1997

U-14 or U-XIV may also refer to:
 * SMU U-14 (Austria-Hungary), the former French submarine Curie|Q 87); captured, raised, and commissioned into the Austro-Hungarian Navy during the First World War