German submarine U-620

German submarine U-620 was a Type VIIC U-boat built for Nazi Germany's Kriegsmarine for service during World War II. She was laid down on 19 June 1941 by Blohm & Voss, Hamburg as yard number 596, launched on 9 March 1942 and commissioned on 30 April 1942 under Oberleutnat zur See Heinz Stein.

Service History
The boat's career began with training at 8th U-boat Flotilla on 30 April 1942, followed by active service on 1 October 1942 as part of the 3rd Flotilla for the remainder of her service.

In 2 patrols she sank 1 merchant ships, for a total of.

Wolfpacks
U-620 took part in five wolfpacks, namely
 * Luchs (27 September - 6 October 1942)
 * Panther (6–11 October 1942)
 * Leopard (12–19 October 1942)
 * Südwärts (24–26 October 1942)
 * Delphin (26 December 1942 - 13 February 1943)

Fate
U-620 was sunk on 13 February 1943 in the North Atlantic in position 39.3°N, -11.28333°W, by depth charges from a Royal Air Force (RAF) Consolidated Catalina of No. 207 Squadron RAF, for the loss of all hands.