- Apr 1 Noah Beery, American character actor (Story of Esther, The Mark of Zorro), dies at 64
- Apr 3 Masaharu Homma, Japanese Lt General (responsible for Bataan Death March in the Philippines), executed by firing squad for war crimes at 58
- Apr 5 Vincent Youmans, American composer and songwriter (Tea for Two), dies at 47
- Apr 12 August Borms, Flemish nazi collaborator, executed at 67
- Apr 12 F Guicciardi, writer, dies
- Apr 13 William Henry Bell, English composer, dies at 72
- Apr 16 Arthur Chevrolet, Swiss auto racer and car designer (co-founder Chevrolet Motor Car Company), dies from suicide at 61
- Apr 17 John Iddon, cricketer (car accident 5 Tests for Eng 1934-35), dies
- Apr 21 Robert Graham, cricketer (3 wkts for South Africa in 2 Tests 1898-99), dies
John Maynard Keynes
Apr 21 John Maynard Keynes, English economist whose ideas changed the theory and practice of modern macroeconomics, dies of a heart attack at 62
- Apr 22 Harlan F. Stone, American lawyer & jurist (SCOTUS, 1941-46), dies at 73
- Apr 22 Lionel Atwill, British actor (Captain Blood, To Be or Not to Be), dies at 61
- Apr 23 Jesús Castillo, Guatemalan composer (Quiché Vinak), dies at 68
- Apr 25 Albert Knight, cricketer (3 Tests for England on 1903-04 tour), dies
- Apr 25 Joseph Vine, cricketer (batted in two Tests Eng v Aust 1911-12), dies
- Apr 26 Hermann von Keyserling, Baltic German philosopher (Unsterblichkeit), dies at 65
- Apr 28 Louis Bachelier, French mathematician, dies at 76