Alexander Ivanovich Chernyshyov (, 1786, Moscow - 1857, Castellammare di Stabia), General of Cavalry (1827), was a Russian military leader, diplomat and statesman, whose career began in Napoleonic Wars. After Battle of Austerlitz, he performed successful diplomatic mission to France and Sweden and served with distinction in battles of 1812 and 1813. Chernyshyov rose through the ranks to the role of Russian Minister of War (1827–1852), chairman of State Council and Cabinet of Ministers (1848–1856), and acquired the styles from Count (1826) to Serene prince (1849).