- Dec 1 Vicente Arregui Garay, Spanish composer, dies at 54
- Dec 2 Juli Garreta, Spanish-Catalan composer (Sardanes; Les illes Medes), dies at 50
- Dec 5 Wilhelmina Drucker [Lensing], Dutch feminist and writer (Women's Mutual Protection Society), dies at 78
- Dec 5 Władysław Reymont [Rejment], Polish novelist (Chłopi (The Peasants) - Nobel Prize for Literature, 1924), dies at 58 [1]
- Dec 6 Dat So la Lee "Dabuda" or Louise Keyser, Native American (Washoe) basket weaver dies aged about 96
- Dec 9 Eugène Gigout, French organist (St Augustin de Paris, 1863-1925), and composer (10 pièces pour orgue), dies at 81
- Dec 17 A. N. Hornby, English cricket batsman and captain (3 Tests; Lancashire CCC) and rugby union utility back & captain (9 Tests; Lancashire CRFC), dies at 78
- Dec 19 José Ignacio Quintón, Puerto-Rican composer (El coquí; Requiem por Angel Mislán), dies at 44
- Dec 23 A S C Wallis [Adele von Antal-Opzoomer], Dutch writer (Vorstengunst), dies at 69
- Dec 25 Karl Abraham, German psychoanalyst, dies at 48
- Dec 25 Sergei Yesenin, Russian lyric poet, dies at 30
- Dec 27 ASC Wallis [Adele SC Opzoomer], Dutch writer and poet, dies at 79
- Dec 27 Sergei Yesenin, Russian poet, dies at 30
- Dec 28 Louisa Aldrich-Blake, British pioneering surgeon, dies of cancer at 65
- Dec 29 Félix E Vallotton, Swiss painter/writer (Chaste Susanne), dies at 60
Assassination
Drug Overdose
Gunshot Wound
Murder
Plane Crash
Suicide