HMS B10 was a Royal Navy B class submarine, built at Vickers, Barrow-in-Furness, launched 23 March 1906 and completed 28 April 1906. B10 was deployed to the Mediterranean soon after the outbreak of World War I. Due to the lack of spare parts this group of submarines were not used after September 1915. An attempt to repair the bomb damage was abandoned after a welding torch ignited a fuel tank resulting in further damage. The submarine was then sold to be broken up.