|Ordered||15 Aug 1940|
|Laid down||15 Feb 1941||Kriegsmarinewerft (KMW), Wilhelmshaven (werk 148)|
|Launched||22 Apr 1943|
|Commissioned||19 Jun 1943||Oblt. Werner Wendt|
|Successes||No ships sunk or damaged|
Sunk 6 May, 1944 in the North Atlantic, in position 52.30N, 28.28W, by depth charges from 2 Swordfish aircraft (Sqdn. 825) of the British escort carrier HMS Vindex and the British frigates HMS Bickerton, HMS Bligh and HMS Aylmer. 37 dead and 11 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-765 did not suffer any casualties (we know of) until the time of her loss.