Portrait by Joseph Grassi
Count Jacob Sievers (August 30, 1731, in Wesenberg (now Rakvere), Estonia - July 23, 1808, in Bauenhof, Governorate of Livonia (near what is now Valmiera, Latvia)) was a Russian statesman from the Sievers family.
After serving the Russian army during the Seven Years' War as quartermaster general, he was appointed governor of Novgorod in 1764 by Catharine II. He introduced the cultivation of potatoes to Russia, regulated the postal services, and was instrumental in the abolition of torture in 1767.
Based on Sievers' initiative, the provincial government reform was instituted; he was himself appointed general governor of Novgorod, Tver and Pskov. He was Russian ambassador to Poland and led the second and third partition of the kingdom. Czar Paul appointed him senator in 1796; in 1797 he became head of the new department for water communications. He was knighted in 1798.
- Blum, Karl Ludwig: Ein russischer Staatsmann, Denkwürdigkeiten des Grafen von Sievers, Leipzig 1857-58, 4 vols.
- Blum, Karl Ludwig: Graf Jacob Johann von Sievers und Russland zu dessen Zeit. Leipzig; Heidelberg: Winter, 1864
- Jones, Robert E: Provincial Development in Russia. Catherine II and Jacob Sievers. Rutgers University Press, 1984