- Apr 1 Francis William Davenport, English composer, dies at 77
- Apr 7 Saint Tikhon of Moscow [Vasily Ivanovich Bellavin], 11th Patriarch of Moscow and all of Russia, dies at 60
- Apr 13 Elwood Haynes, American automotive pioneer (built one of 1st US autos), dies at 67
- Apr 14 Pieter D. van Essen, Dutch artillery officer, dies at 54
- Apr 15 John Singer Sargent, American painter (Wyndham Sisters), dies at 69
- Apr 18 Charles Ebbets, American sports executive (co-owner of Brooklyn Dodgers 1897-1902), dies at 65
- Apr 20 Herbert Lawford, British tennis player (Wimbledon 1887; first exponent of topspin), dies at 73
- Apr 22 André Caplet, French composer and conductor (Conte Fantastic, Le miroir de Jesus), dies from WWI gas attack issues at 45
- Apr 25 George Stephănescu, Romanian composer, dies at 81
- Apr 28 Louis Bouwmeester, Dutch actor (Shakespeare), dies at 82
- Apr 29 Edward J. McKeever, American baseball executive (co-owner Brooklyn Dodgers), dies of influenza at 66
Assassination
Drug Overdose
Gunshot Wound
Murder
Plane Crash
Suicide