SM UC-65
 SM UC-65 was a German Type UC II minelaying submarine or U-boat in the German Imperial Navy (German: Kaiserliche Marine) during World War I. The U-boat was ordered on 12 January 1916 and was launched on 8 July 1916. She was commissioned into the German Imperial Navy on 7 November 1916 as SM UC-65. In 11 patrols UC-65 was credited with sinking 105 ships either by torpedo or by mines laid. UC-65 was torpedoed and sunk by HMS C15 on 3 November 1917.