Isamu Mochizuki (望月 勇, Mochizuki Isamu, 1906 – 6 February 1944) was an officer and ace fighter pilot in the Imperial Japanese Navy (IJN) during the Second Sino-Japanese War and the Pacific theater of World War II. He was officially credited with destroying ten enemy aircraft over China and the Pacific. He is famous for inventing the hineri-komi half-loop-and-roll technique that was employed in dogfighting by many Japanese fighter pilots.