SM UB-116 was a German Type UB III submarine or U-boat in the German Imperial Navy () during World War I. She was commissioned into the German Imperial Navy on 24 May 1918 as SM UB-116. UB-116 was sunk a remote-controlled mine at off Orkney while making an attempt to enter Scapa Flow in order to attack units of the British Grand Fleet as part of final German Naval offensive of the war.