Ivan Sergeyevich Leontiev was an Imperial Russian general who fought in the Napoleonic Wars. In December 1812 he was promoted to major general and made commander of the 1st Brigade of the 2nd Cuirassier Division under Baron Duka and fought at the battles of Lützen and Bautzen.
- Occupation
- military officer, military leader
- Citizenship
- Russian Empire
- Born
- March 13, 1782, March 2, 1782
- Died
- August 10, 1824, August 2, 1824
