SM UB-10 was a German Type UB I submarine or U-boat in the German Imperial Navy (German: Kaiserliche Marine) during World War I. UB-10 was ordered in October 1914 and was laid down at the AG Weser shipyard in Bremen in November. UB-10 was a little under 28 metres (92 ft) in length and displaced between 127 and 141 t (125 and 139 long tons), depending on whether surfaced or submerged. She carried two torpedoes for her two bow torpedo tubes and was also armed with a deck-mounted machine gun. UB-10 was broken into sections and shipped by rail to Antwerp for reassembly. She was launched in February 1915 and commissioned as SM UB-10 in March. The U-boat was the first of her class to commence operations when she entered service on 27 March 1915.