- Oct 3 Mikhail Lermontov, Russian poet and writer (Demon & other poems), born in Moscow (d. 1841)
- Oct 11 Jean Baptiste Lamy, 1st Archbishop of Santa Fe (1853-85), born in Lempdes, Puy-de-Dôme, France (d. 1888)
- Oct 24 Rafael Carrera, Guatemalan military commander and Dictator of Guatemala (1844–48, 1851–65), born in Guatemala City, New Spain (d. 1865)