Ivan Vasilyevich Turchaninov (December 24, 1821 – June 18, 1901; Russian: Ива́н Васи́льевич Турчани́нов), better known by his Anglicised name of John Basil Turchin, was a Union army brigadier general in the American Civil War. He led two critical charges that saved the day at Chickamauga and was among the first to lead soldiers up Missionary Ridge.
Ivan Turchaninov was born into a Don Cossack family in Russia and attended the Imperial Military School in St. Petersburg in 1851. He later served as a Colonel of Staff in the Russian Guards and fought in Hungary and in the Crimean War.
In May 1856, he married Nadezhda Lovov, the daughter of his commanding officer. Later that year, he and his wife immigrated to the United States, where he eventually settled in Chicago and worked for the Illinois Central Railroad.