- Apr 2 Benjamin Christensen, Danish actor (Barnet, Mockery) and film director (Häxan), dies at 79
- Apr 8 Gustave Charlier, Belgian literature historian, dies
Frank Lloyd Wright
Apr 9 Frank Lloyd Wright, American architect (Guggenheim) recognized as "the greatest American architect of all time", dies at 89
Frank Lloyd Wright
- Apr 12 Ernest Willem Mulder, composer, dies at 60
- Apr 12 James Gleason, American writer and actor (Bishop's Wife, Flying Fool), dies at 76
- Apr 13 Eduard van Beinum, Dutch musician & conductor, dies at 58
- Apr 13 Rigardus "Rijn" Rijnhout, Giant of Rotterdam (2.375m), dies at 38
- Apr 16 Charles Halton, British stage actor (Dr Cyclops, Tugboat Annie Sails Again), dies at 83
- Apr 18 Irving Cummings, American silent screen actor & director (In Old Ariz), dies at 70
- Apr 24 Jef van Hoof, Flemish composer, dies at 72
- Apr 27 Gordon Armstrong, American inventor of the baby incubator, dies at 69
- Apr 30 Armand Marsick, Belgian composer, dies at 81