SM UC-109

SM UC-109 was a German Type UC III minelaying submarine or U-boat built for the German Imperial Navy (Kaiserliche Marine) during World War I. The U-boat was launched on 2 June 1918 and completed on 4 December 1918. Because UC-109 was finished after the end of fighting, she was never commissioned into the German Imperial Navy; had she been so commissioned, she would have been named SM UC-109. UC-109 was awarded to the United Kingdom as a war reparation and broken up in 1921.