SM U-44 was one of the 329 submarines serving in the Imperial German Navy in World War I.

She was engaged in the naval warfare and took part in the First Battle of the Atlantic.

SM U-44, under the command of Paul Wagenführ, was completed at Danzig about June or July 1915.

She later joined the Kiel School, where she remained until 20 August 1915 undergoing trials.

On 12 August 1917, U-44 was rammed and sunk in the North Sea south of Norway (58°50′N 4°20′E / 58.833°N 4.333°E / 58.833; 4.333) by the Royal Navy destroyer HMS Oracle with the loss of all 44 of her crew.