German submarine U-990

German submarine U-990 was a Type VIIC U-boat built for Nazi Germany's Kriegsmarine for service during World War II. She was laid down on 17 October 1942 by Blohm & Voss, Hamburg as yard number 190, launched on 16 June 1943 and commissioned on 28 July 1943 under Kapitänleutnant Hubert Nordheimer.

Service History
The boat's career began with training at 5th Flotilla on 28 July 1943, followed by active service on 1 January 1944 as part of the 11th Flotilla.

Wolfpacks
U-990 took part in four wolfpacks, namely
 * Werwolf (28 January – 27 February 1944)
 * Orkan (5 – 10 March 1944)
 * Hammer (10 – 26 March 1944)
 * Blitz (2 – 4 April 1944)

Fate
U-990 was sunk on 25 May 1944 in the Norwegian Sea at 65.08333°N, 7.46667°W after being depth charged by a RAF Liberator bomber of 59 Squadron.

Sqn Ldr B. Sisson sighted U-990 on the surface at 06:23 and attacked under cover of a rain squall, dropping six depth charges. Following the battack, the submarine could be seen sinking amid a large oil slick.

There were 20 crew killed, and 33 survivors.