SM UB-149 was a German Type UB III submarine or U-boat built for the German Imperial Navy (German: Kaiserliche Marine) during World War I. She was commissioned into the German Imperial Navy on 22 October 1918 as UB-149 . UB-149 was surrendered to Britain in accordance with the requirements of the Armistice with Germany on 22 November 1918 and broken up at Swansea in 1922.
See main article: Type UB III submarine. She was built by AG Weser of Bremen and following just under a year of construction, launched at Bremen on 19 September 1918. UB-149 carried 10 torpedoes and was armed with a 10.52NaN2 deck gun. UB-149 would carry a crew of up to 3 officer and 31 men and had a cruising range of 9090nmi. UB-149 had a displacement of 523lk=inNaNlk=in while surfaced and 653t when submerged. Her engines enabled her to travel at 13.5kn when surfaced and when submerged.