Grigory Ivanovich Butakov (Russian: Григорий Иванович Бутаков) (9 October 1820 – 31 May 1882) was a Russian admiral who fought in the Crimean War. Butakov is widely credited as being the father of steam-powered ship tactics during the 19th century. He was involved in the first battles of the Crimean War, which includes the first sea battles involving steam-powered ships. Butakov wrote of his experiences in his book: New Principles of Steamboat Tactics (1863), which won him the Demidov Prize.