- Dec 5 Clyde Cessna, American aviator and airplane manufacturer, born in Hawthorne, Louisiana (d. 1954)
- Dec 12 Friedrich Christiansen, German nazi commander Wehrmacht Netherland, born in Wyk auf Föhr, Province of Schleswig-Holstein, German Empire (d. 1972)
- Dec 15 Hugo Willem Constantijn Bordewijk, Dutch lawyer, born in The Hague, Netherlands (d. 1939)
- Dec 18 Paul Klee, Swiss-German abstract painter and educator at the Bauhaus (Twittering Machine), born in Münchenbuchsee Switzerland, (d. 1940)
- Dec 21 Theodore Limperg, Dutch accountant, born in Amsterdam, Netherlands (d. 1961)
- Dec 22 Stanislas Bizot, French draughts champion (1925), born in Nice, France (d. 1950)
- Dec 24 Émile Nelligan, Canadian francophone poet, born in Montreal, Quebec (d. 1941)
- Dec 29 Billy Mitchell, United States Army general (father of the US Air Force), born in Nice, France (d. 1936)
- Dec 30 Sri Ramana Maharshi, Indian Hindu philosopher and yogi (Maharshi Research Institute), born in Tiruchuli, British India (d. 1950)