- Jul 5 Albrecht Kossel, German physician (Nobel 1910), dies at 73
- Jul 7 Gösta Mittag-Leffler, Swedish mathematician (b. 1846)
- Jul 9 John Drew Jr., American Shakespearean actor (The Big Bonanza), dies at 73
- Jul 10 Kevin O'Higgins, Irish Free State VP, assassinated at 35
- Jul 15 Constance Markievicz, Irish politician, revolutionary and suffragist (1st woman elected to UK House of Commons, 1st female cabinet minister in Europe), dies of complications after surgery at 59 [1]
- Jul 20 Ferdinand I [Meinrad], King of Romania (1914-27), dies of cancer at 61
- Jul 21 J. J. Lyons, Australian cricketer (14 Tests for Australia), dies at 64
- Jul 23 Saad Zaghlul, Egyptian parliament chairman, dies at 74
- Jul 23 William Ashley, English economic historian (The Economic Organisation of England), dies at 67
- Jul 24 Ryūnosuke Akutagawa 'father of the Japanese short story', Japanese writer (Rashomon in Kappa), commits suicide at 35
- Jul 25 Matilde Serao, Italian writer and journalist (Land of Cockayne, 1st woman to edit Italian newspaper), dies at 71
- Jul 30 James Emman Kwegyir Aggrey, Ghanaian-American missionary, educator and scholar, dies of meningococcal meningitis at 51
- Jul 30 Robert de Flers, French writer and playwright (Monsieur Bretonneau), dies at 54
- Jul 31 Walter Travis, Australian-American golfer, writer, course designer (US Amateur C'ship 1900-01, 03; British Amateur 1904), dies at 65
Assassination
Car Crash
Hanging
Killed in Action
Plane Crash
Poisoning