- Apr 5 Emil Młynarski, Polish conductor and composer, dies at 64
- Apr 6 Edward Arlington Robinson, American poet, dies
- Apr 8 Edwin Cannan, British economist and historian (A History of the Theories of Production and Distribution), dies at 74
- Apr 14 Amalie Emmy Noether, German mathematician (b. 1882)
- Apr 18 Ignazio Guidi, Italian orientalist & archaeologist, dies at 90
- Apr 18 Panait Istrati, Romanian writer, dies at 50
- Apr 20 Juliaan de Vriendt, Flemish painter, dies at 92
- Apr 20 Lucy, Lady Duff-Gordon, English fashion designer, dies at 71
- Apr 24 Paul Klengel, German pianist, violinist, composer and educator, dies at 80
- Apr 28 Alexander Campbell Mackenzie, Scottish composer, dies at 87
- Apr 29 Leroy Carr, American blues piano player and singer-songwriter ("How Long, How Long Blues"), dies of nephritis of the kidneys at 30
Assassination
Drug Overdose
Gunshot Wound
Murder
Plane Crash
Suicide