- Oct 20 Victor de Stuers, Dutch art connoisseur
- Oct 21 Mark M Antokolski, Russian/French sculptor (Peter the Great)
- Oct 22 Stephen Babcock, American agricultural chemist (Babcock test and father of scientific dairying), born in Oneida County, New York (d. 1931)
- Oct 25 Gleb Uspensky, Russian author (Power of the Soil), born in Tula, Russian Empire (d. 1902)
- Oct 26 Vasily Vereshchagin, Russian painter (War & Peace), born in Cherepovets, Russia (d. 1904)
- Oct 30 Henri Regnault, French painter, born in Paris (d. 1871)