SM UB-154'[Note 1] 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 never commissioned into the German Imperial Navy but surrendered to France on 9 March 1919 in accordance with the requirements of the Armistice with Germany and broken up at Brest in July 1921.

[2] SM UB-154 was built by AG Vulcan of Hamburg and following just under a year of construction, launched at Hamburg on 7 October 1918.

UB-154 carried 10 torpedoes and was armed with an 8.8 cm (3.46 in) deck gun.

UB-154 would carry a crew of up to three officers and 31 men and had a cruising range of 7,120 nautical miles (13,190 km; 8,190 mi).