SM UB-97 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 25 July 1918 as SM UB-97. UB-97 was surrendered to the British on 21 November 1918 in accordance with the requirements of the Armistice with Germany. On her way to Falmouth, Cornwall, UB-97 and three other u-boats stranded and were broken up in Falmouth in 1921.