U 14
U 14 denotes several submarines:
- SM U 14 (1912–1915), a submarine of the German Imperial Navy
- U 14 (kuk Marine) (1915–1918), a submarine of the Austro-Hungarian Navy
- U 14 (Kriegsmarine) (1936–1945), a submarine of the German Kriegsmarine
- U 14 (Bundeswehr) (1973–1997), a submarine of the German Navy
