German submarine U-1010 was a Type VIIC/41 U-boat of Nazi Germany's Kriegsmarine during World War II.
She was ordered on 23 March 1942, and was laid down on 23 February 1943, at Blohm & Voss, Hamburg, as yard number 210. She was launched on 5 January 1944, and commissioned under the command of Oberleutnant zur See Otto Bitter on 22 February 1944.
German Type VIIC/41 submarines were preceded by the heavier Type VIIC submarines. U-1010 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-1010 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-1010 participated in one war patrol which resulted in no ships damaged or sunk.
U-1010 had a Schnorchel underwater-breathing apparatus fitted out sometime before April 1945.
On 14 May 1945, U-1010 surrendered at Loch Eriboll, Scotland and was later transferred to Lisahally. Of the 156 U-boats that eventually surrendered to the Allied forces at the end of the war, U-1010 was one of 116 selected to take part in Operation Deadlight. U-1010 was towed out and sank on 7 January 1946, by naval gunfire from the Polish destroyer .
The wreck now lies at .