SM UB-74 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 October 1917 as SM UB-74.
UB-74 was serving in the Flanders Flotillas. On 26 May 1918 she was sunk by with depth charges in the English channel.
Construction
She was built by AG Vulcan of Hamburg and following just under a year of construction, launched at Hamburg on 12 September 1917. UB-74 was commissioned later that same year under the command of Kptlt. Karl Neureuther. Like all Type UB III submarines, UB-74 carried 10 torpedoes and was armed with a deck gun. UB-74 would carry a crew of up to 3 officer and 31 men and had a cruising range of . UB-74 had a displacement of while surfaced and when submerged. Her engines enabled her to travel at when surfaced and when submerged.