- Jan 2 Sir Francis Newdegate, English politician (Governor of Tasmania, Western Australia), dies at 73
- Jan 16 Albert Fish, American serial killer, executed at 65
- Jan 17 Mateiu Caragiale, Romanian author (b. 1885)
Rudyard Kipling
Jan 18 Rudyard Kipling, English author (Gunga Din, Nobel 1907), dies at 70
- Jan 28 Richard Loeb, American Murder, killed Bobby Franks along with Nathan Leopold, killed in prison at 30
- Feb 1 Georgios Kondylis, Prime Minister of Greece & general of the Greek army, dies at 56
- Feb 2 Owen Seaman, British poet and editor (Punch), dies at 74
- Feb 3 Sophie of Schönburg-Waldenburg, consort of William of Wied, Prince of Albania (b.1885)
- Feb 4 Wilhelm Gustloff, German leader of the Swiss Nazi party (b. 1895)
- Feb 9 Jacques Bainville, French historian/essayist/journalist, dies at 57
- Feb 16 James Harvey Robinson, American historian (Ordeal of Civilization), dies at 72
- Feb 17 Erich Schaeder, German theologist (Theozentrische), dies at 74
- Feb 19 Charles Harding Firth, British historian (b. 1857)
- Feb 22 John Hope, American educator (President of Atlanta Baptist/Morehouse College,1906-36 and Atlanta University, 1929-36), dies at 67
- Feb 22 Johan Skjoldborg, Danish writer (Dynaes Digte), dies at 74
Ivan Pavlov
Feb 27 Ivan Pavlov, Russian physiologist and pioneer in psychology (Nobel Prize 1904), dies at 86
- Feb 27 Joshua W. Alexander, U.S. Secretary of Commerce under Woodrow Wilson (b. 1852)
- Feb 28 Pedro Munoz Seca, La Caraba/La oca, dies at 55
- Feb 28 Charles Nicolle, French bacteriologist (Nobel Prize in Medicine 1928), dies at 69
- Mar 2 Princess Victoria Melita of Saxe-Coburg and Gotha, Grand Duchess of Hesse, dies at 59
David Beatty
Mar 12 David Beatty, 1st Earl Beatty and British Admiral of the Fleet during World War I (Battle of Jutland), dies of heart failure at 65
Eleftherios Venizelos
Mar 18 Eleftherios Venizelos, Prime Minister of Greece (1910-15, 1917-20, 1924, 1928-32, 1933), dies of a stroke at 71
- Apr 2 Jean-Baptiste Eugène Estienne, French general (Father of The Tank), dies at 75
- Apr 3 Bruno Hauptmann, German kidnapper of Charles Augustus Lindbergh III, executed at 36
- Apr 8 Robert Bárány, Austrian physician, Nobel laureate (b. 1876)
- Apr 9 Ferdinand Tönnies, German sociologist and philosopher, dies at 80
- Apr 13 Konstantinos Demertzis, Greek premier, dies at 60
- Apr 17 Charles Ruys de Beerenbrouck, Dutch PM (1918-23, 29-33), dies at 62
- Apr 23 Teresa de la Parra, Venezuelan writer (Memorias de Mamá Blanca), dies at 46
- Apr 27 Frederik August Stoett, Dutch linguist (Dutch Proverbs), dies at 72
- Apr 27 Karl Pearson, British statistician (leading founder of the modern field of statistics), dies at 79
- Apr 28 Fuʾād I [Aḥmad Fuʾād Pasha], King of Egypt (1922-36), dies at 68
- Apr 29 Florentinus M. Wibaut, Amsterdam social alderman, dies at 76
- Apr 30 A. E. Housman, English poet (A Shropshire Lad), dies at 77
- May 8 Oswald Spengler, German historian and philosopher (Underworld of Abendlandes), dies at 55
- May 9 François Conrad Schlumberger, French physicist, dies at 57
- May 14 Edmund Allenby, Viscount Allenby, English Fieldmarshal, General in Egypt during WWI, dies at 74
- May 14 Samuel Pierre l'Honoré Naber, Dutch rear-admiral and librarian, dies at 71
- May 17 Panagis Tsaldaris, twice Greek prime minister (b. 1868)
- Jun 3 Clara Noyes, American nurse (head of the American Red Cross WW1), dies from a heart attack at 66
- Jun 7 Stjepan Seljan, Croatian explorer, dies at 60
- Jun 11 Robert E. Howard, American pulp fiction author (Conan the Barbarian), commits suicide aged 30
- Jun 11 Julius Nieuwland, Belgian-American chemist (inventor of neoprene), dies at 58
- Jun 12 Isidore Weiss, French checker player (world champion x 7), dies at 69
- Jun 12 Karl Kraus, Austrian satirical writer, dies at 62
- Jun 12 M. R. James, English scholar and author (Ghost Stories of an Antiquary), dies at 73
- Jun 14 Hans Poelzig, German architect (Grosses Schauspielhaus), dies at 67
- Jun 14 G. K. Chesterton [Gilbert Keith], English writer/poet (Father Brown), dies at 62
- Jun 16 Leib Malach, Yiddish writer, dies at 41
Maxim Gorky
Jun 18 Maxim Gorky [Alexei M Peshkov], Russian writer (Mother), dies at 68
- Jun 22 Moritz Schlick, Austrian philosopher assassinated at 54 by former student Johann Nelböck
- Jul 13 Jose Calvo Sotelo, Spanish minister of Finance, murdered at 43
- Jul 20 Jose Sanjurjo, Spanish general (Morocco) and high director, dies at 64
- Jul 24 Georg Michaelis, Chancellor of German Empire, dies at 78
- Aug 2 Louis Blériot, French aviator who made the first flight across the English Channel in a heavier than air aircraft, dies of a heart attack at 64
- Aug 11 Blas Infante, Spanish writer and politician (b. 1885)
- Aug 14 Rainey Bethea, American murderer, hanged in Owensboro, Kentucky, last US public hanging
- Aug 15 Grazia Deledda, Italian author (Nobel 1926), dies at 64
- Aug 22 Juliette Adam, French author (Salon/Nouvelle Revue) and feminist, dies at 99
- Aug 25 Grigory Zinoviev [Hirsch Apfelbaum], Russian revolutionary, dies at 52
- Sep 3 Nikita Balieff, Armenian vaudevillian and impresario (b. 1876 or 1877)
- Sep 5 Gustave Kahn, French Symbolist poet and art critic (b. 1859)
- Sep 12 Hermann Hirt, German linguist (Indo-European Grammar), dies at 70
- Sep 16 Karl Buresch, Austrian lawyer and politician, dies at 57
- Sep 17 Ettie Annie Rout, New Zealand activist (b. 1877)
- Sep 26 Harriet Monroe, American poet (Poet's Life), dies at 75
- Oct 5 Jan J Slauerhoff, Dutch ship doc/writer (Seaman's Grave), dies at 38
- Oct 8 William Henry Stark, American timber industry leader, dies ta 85
- Oct 12 Edwin Blashfield, American painter who decorated the dome of Library of Congress, dies at 87
- Oct 19 Lu Xun, Chinese writer of modern Chinese literature, dies at 55
- Oct 20 Anne Sullivan [Johanna Macy], American teacher who educated Helen Keller, dies at 70
- Oct 25 Jaime de Magalhães Lima, Portuguese author and poet (Salmos do Prisoneiro), dies at 76
- Oct 26 Bob Dellemijn, Lourdes-ganger/Franco-volunteer, dies in battle at 18
- Oct 29 Ramiro de Maeztu, Spanish writer (Don Quixote & Celestine), dies at 61
- Oct 30 Lorado Taft, American sculptor (Black Hawk), dies at 76
- Nov 2 Martin Lowry, English chemist (Brønsted–Lowry acid–base theory), dies at 62
- Nov 6 Henry Bourne Joy, American automobile executive (b. 1864)
- Nov 10 Louis Gustave Binger, French officer and explorer (b. 1856)
- Nov 19 Buenaventura Durruti, Spanish anarchists army leader, dies in battle
- Nov 20 Jose A Primo de Rivera, Spanish lawyer and politician (founder of Spanish Falange), executed at 33
- Nov 22 Louis Apol, Dutch painter, etcher and literary, dies at 86
- Dec 2 John Ringling, American circus owner (b. 1866)
- Dec 10 Luigi Pirandello, Italian writer (Six Characters in Search of An Author-Nobel 1934), dies at 69
- Dec 18 Andrija Mohorovičić, Austro-Hungarian-born Yugoslav seismologist (b. 1857)
- Dec 20 Baron De Borchgrave, Belgian ambassador, murdered in Madrid
- Dec 24 Dragutin Gorjanovic-Kramberger, Croatian paleontologist (discovery and descriptions of the Neandertal remains from the Huŝnjakova rock shelter at Krapina in northwestern Croatia), dies at 80
- Dec 27 Hans von Seeckt, German general and advisor of Chiang Kai-shek, dies at 70
- Dec 31 Miguel de Unamuno Jugo, Span philosopher/poet (Cancionero), dies at 72
- Dec 31 William FA Ellison, Irish clergyman/astronomer, dies at 72