German submarine U-720

German submarine U-720 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine during World War II. The submarine was laid down on 17 August 1942 at the H. C. Stülcken Sohn yard at Hamburg, launched on 5 June 1943, and commissioned on 17 September 1943 under the command of Leutnant zur See Wolf-Harald Schüer.

Service history
Sank on 21 December 1945 as part of Operation Deadlight by artillery fire from ORP Piorun (G65), HMS Onslaught, HMS Zetland, and HMS Fowey in position 56.06667°N, -9.58333°W.