SM UB-36 was a German Type UB II submarine or U-boat in the German Imperial Navy () during World War I. The U-boat was ordered on 22 July 1915 and launched on 15 January 1916. She was commissioned into the German Imperial Navy on 22 May 1916 as SM UB-36. The submarine sank seven ships in 12 patrols. UB-36 was rammed and presumably sunk by French steamer SS Molière off Ushant in the English Channel on 27 May 1918. Others believe this to have in fact been and think UB-36 struck a mine and sank elsewhere.