|Ordered||14 Oct 1941|
|Laid down||31 Dec 1942||Danziger Werft AG, Danzig (werk 137)|
|Launched||20 Jul 1943|
|Commissioned||17 Nov 1943||Oblt. Hans Homann|
|Successes||1 warship sunk, total tonnage 53 tons|
Surrendered on 9 May 1945 at Narvik, Norway (Waller & Niestlé, 2010).
Transferred to Loch Eriboll, Scotland on 19 May 1945 and later to Lisahally.
Operation Deadlight (post-war Allied operation, info)
The U-boats that were in the Narvik area at the end of the war were all moved to the Skjomenfjord upon Allied orders to avoid conflicts with the Norwegians on 12 May. On 15 May, a German convoy of five ships (the fleet tender Grille with the staff of FdU Norwegen aboard, the fleet oiler Kärnten, the repair ship Kamerun and the depot ships Huascaran and Stella Polaris) and 15 U-boats (U-278, U-294, U-295, U-312, U-313, U-318, U-363, U-427, U-481, U-668, U-716, U-968, U-992, U-997 and U-1165) left for transfer to Trondheim, but was intercepted after two days by the 9th Escort Group off the Norwegian coast and officially capitulated. While the ships were allowed to proceed to Trondheim, the U-boats were escorted to Loch Eriboll, Scotland, arriving on 19 May. All U-boats were later that month transferred to Lisahally or Loch Ryan for Operation Deadlight.
This boat was fitted with a Schnorchel underwater-breathing apparatus and sailed equipped with it in April 1945 but it was of course installed prior to that date.
Men lost from U-boats
Unlike many other U-boats, which during their service lost men due to accidents and various other causes, U-1165 did not suffer any casualties (we know of) until the time of her loss.