German submarine U-339

German submarine U-339 was a Type VIIC U-boat of the Nazi German Kriegsmarine during World War II. The submarine was laid down on 7 July 1941 at the Nordseewerke yard at Emden as 'werk' 211, launched on 30 June 1942 and commissioned on 25 August under the command of Kapitänleutnant Georg-Wilhelm Basse.

The U-boat spent most of her career as a training vessel. She sank or damaged no ships.

She was scuttled in May 1945 at war's end near Wilhelmshaven.

Service history
The boat's service life began with training with the 8th U-boat Flotilla from 25 August 1942. She was then transferred to the 11th flotilla on 1 March 1943. She was reassigned to the 22nd flotilla on 1 April.

Fate
The boat was seriously damaged by depth charges dropped from a British PBY Catalina of No. 190 Squadron RAF on 26 March 1943. As a result, she spent the rest of the war as a training vessel.

She was scuttled near Wilhlemshaven on 3 May 1945.