|Ordered||10 Apr 1941|
|Laid down||9 Jan 1942||Bremer Vulkan-Vegesacker Werft, Bremen-Vegesack (werk 39)|
|Launched||19 Sep 1942|
|Commissioned||7 Nov 1942||Oblt. Günther Jordan|
|Successes||No ships sunk or damaged|
Sunk 23 Oct, 1943 in the North Atlantic south-west of Iceland in position 57.14N, 27.50W, by depth charges from the British destroyers HMS Duncan and HMS Vidette, and by depth charges from a British Liberator aircraft (Sqdn. 224/Z). 48 dead (all hands lost).
Men lost from U-boats
Unlike many other U-boats, which during their service lost men due to accidents and various other causes, U-274 did not suffer any casualties (we know of) until the time of her loss.