German submarine U-1101 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine during World War II.
She was ordered on 5 June 1941, and was laid down on 18 March 1943 at Nordseewerke, Emden, as yard number 223. She was launched on 13 September 1943 and commissioned under the command of Leutnant zur See Rudolf Dübler on 10 November 1943.
German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-1101 had a displacement of when at the surface and while submerged. She had a total length of , a pressure hull length of , a 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 SSW GU 343/38-8 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-1101 was fitted with five torpedo tubes (four fitted at the bow and one at the stern), fourteen torpedoes or 26 TMA mines, one SK C/35 naval gun, (220 rounds), one Flak M42 and two twin C/30 anti-aircraft guns. The boat had a complement of between 44 â 52 men.
U-1101 was scuttled near Gelting in Gelting Bay on 5 May 1945 as part of Operation Regenbogen. Her wreck was raised and broken up.