German submarine U-1002 was a Type VIIC/41 U-boat of Nazi Germany's Kriegsmarine during World War II.
She was ordered on 14 October 1941, and was laid down on 4 January 1943, at Blohm & Voss, Hamburg, as yard number 202. She was launched on 6 October 1943, and commissioned under the command of Oberleutnant zur See Albrecht Schubart on 30 November 1943.
German Type VIIC/41 submarines were preceded by the heavier Type VIIC submarines. U-1002 had a displacement of when at the surface and while submerged. She had a total length of , a pressure hull length of , an overall beam of , a height of , and a draught of . The submarine was powered by two Germaniawerft F46 four-stroke, six-cylinder supercharged diesel engines producing a total of for use while surfaced, two BBC GG UB 720/8 double-acting electric motors producing a total of for use while submerged. She had two shafts and two propellers. The boat was capable of operating at depths of up to .
The submarine had a maximum surface speed of and a maximum submerged speed of . When submerged, the boat could operate for at ; when surfaced, she could travel at . U-1002 was fitted with five torpedo tubes (four fitted at the bow and one at the stern), fourteen torpedoes or 26 TMA or TMB Naval mines, one SK C/35 naval gun, (220 rounds), one Flak M42 and two C/30 anti-aircraft guns. The boat had a complement of between forty-four and fifty-two.
U-1002 participated in only one war patrol which resulted in no ships damaged or sunk.
On 9 May 1945, U-1002 surrendered at Bergen, Norway, and was transferred to Lisahally on 30 May 1945, where she would wait nearly seven months for her final fate. Of the 156 U-boats that eventually surrendered to the Allied forces at the end of the war, U-1002 was one of 116 selected to take part in Operation Deadlight. U-1002 was towed out but sank on 13 December 1945, by unknown causes, becoming one of the 56 U-boats that sank before reaching the scuttling areas.
The wreck now lies at .