The 61 cm Type 90 torpedo was a surface-fired torpedo used by the Imperial Japanese Navy during World War II. It was used in the Hatsuharu-class destroyers and in most cruisers, including the Furutaka, Aoba, Myoko, Takao and Mogami-class heavy cruisers after refits during the 1930s. It was superseded by the Type 93 oxygen-powered torpedo, commonly called the Long Lance, as oxygen generating equipment was installed aboard the cruisers.