Russian general, statesman, and progressive administrator during the reign of Tsar Nicholas I (1825–55).

Kiselyov fought in the war against Napoleon in 1812 and in 1814 became an aide-de-camp to Alexander I, after which his rise was rapid. He served as chief of staff of the Second Army in the Ukraine (1819–29) and then carried out a number of progressive reforms as administrator of Moldavia and Walachia (1829–34). He was promoted to full general and became a member of the State Council in 1834. For the next two decades he was one of Tsar Nicholas' principal advisers as well as a leading participant in government administration of the peasantry. He helped draft plans for the government regulation of land allocation to the serfs after their projected emancipation, and in 1837 he became minister of state properties and reformed the regulations concerning state peasants. Schools he had established for children of government peasants became known as Kiselyov schools. Under Tsar Alexander II Kiselyov served as ambassador to Paris from 1856 to 1862.