|Ordered||26 Oct 1939|
|Laid down||19 May 1940||Flensburger Schiffsbau-Ges, Flensburg (werk 476)|
|Launched||31 Mar 1942|
|Commissioned||18 Jun 1942||Oblt. Adolf Kellner|
|Successes||No ships sunk or damaged|
Left Kiel on 15 Dec, 1942. Sunk 26 Dec, 1942 in the North Atlantic north-west of Ireland, in position 57.10N, 15.40W, by depth charges from the British destroyers HMS Hesperus and HMS Vanessa. 36 dead and 6 survivors.
Men lost from U-boats
Unlike many other U-boats, which during their service lost men due to accidents and various other causes, U-357 did not suffer any casualties (we know of) until the time of her loss.