- Apr 1 George II, King of Greece (1922-1924, and 1935-1947), dies of arteriosclerosis at 56
- Apr 4 William O'Donnell, Irish politician (b. ?)
- Apr 6 Herbert Backe, German Nazi politician (Reich Minister for Food and Agriculture), dies at 50
Henry Ford
Apr 7 Henry Ford, American industrialist & auto maker (Ford Model T), dies at 83
Henry Ford
- Apr 11 Louise Peete, American convicted serial killer, dies at 66
- Apr 12 Christian F L Leipoldt, South African writer (Die Moormansgat), dies
- Apr 16 Rudolf Höss, German commandant of the Auschwitz concentration camp, dies at 45
- Apr 18 Jozef Tiso, Slovak politician (President of the First Slovak Republic), dies at 59
- Apr 20 Christian X, King of Denmark (1912-47), dies at 76
- Apr 24 Willa Cather, American writer (My Ántonia), dies at 73
- Apr 29 Irving Fisher, US economist, dies at 80