- Dec 2 Filippo T Marinetti, Italian writer (father of futurism), dies at 67
- Dec 2 JW Ummels, Dutch resistance fighter (House of Saxon-Nazi), dies
- Dec 2 Filippo Tommaso Marinetti, Italian-French prose writer, novelist, poet, and dramatist (Futurism e Futurista), dies of cardiac arrest at 67
- Dec 3 Delfien Vanhaute, Flemish pastor/poet (Ark of Noah), dies at 75
- Dec 13 Vassily Kandinsky, Russian-born German, French abstract painter, dies at 78
- Dec 16 Elisabeth ten Boom dies at 59
- Dec 17 Pieter A. Roodenburgh, student and resistance fighter, dies at 26
- Dec 19 Rudolph Karstadt, German entrepreneur (b. 1856)
- Dec 20 Abbas Hilmi II, viceroy of Egypt (1892-1914), dies at 70
- Dec 23 Charles Dana Gibson, American illustrator (Gibson Girl), dies at 77
- Dec 28 Cornelia ten Boom is accidentally released from Ravensbruck
- Dec 30 Romain Roland, French writer/pacifist (Nobel 1915), dies at 78