- Apr 2 Fortunio Bonanova, Spanish actor and opera singer (My Best Gal, Havana Rose), dies at 74
- Apr 3 Rex Evans, British actor (Frankenstein Meets The Wolfman; Zara; Matchmaker), dies after surgery at 65
- Apr 5 Ain-Ervin Mere, Estonian Nazi (b. 1903)
- Apr 5 Gabriel M-E-R Chevallier, French author (La Peur), dies at 73
- Apr 5 Rómulo Gallegos, 48th President of Venezuela (1948), dies at 84
- Apr 5 Shelby Storck, American television producer, dies at 52
- Apr 8 Arthur Walter Kramer, American composer, dies at 78
- Apr 8 Haskell Karp, American heart transplant patient, who received 1st fully artificial heart, dies after 65 hours at 48
- Apr 10 Harley Earl, American automobile designer (1st head of design at General Motors), dies at 75
- Apr 11 Ludvig Irgens-Jensen, Norwegian composer, dies at 74
- Apr 15 Victoria von Battenberg, Queen of Spain, wife of King Alfonso XIII, dies at 81
- Apr 18 Peter Scharow, Russian-Italian actor and director (Chechov), dies at 82
- Apr 20 William "Benny" Benjamin, American session drummer (Motown's Funk Brothers), dies of a stroke at 43 [1]
- Apr 23 Krzysztof Komeda, Polish jazz pianist and film composer (Rosemary's Baby), dies of head injuries as the result of a fall at 37
- Apr 25 Margarita Xirgu, Catalan stage actress, director and political radical (Bloody Wedding, Mariana Pineda), dies at 80
- Apr 26 Morihei Ueshiba, Japanese martial artist and founder of the Japanese martial art of aikido, dies at 85
- Apr 27 Dino Terranova, American actor (Young Dillinger), dies at 65
- Apr 27 René Barrientos, President of Bolivia, dies at 49
- Apr 28 Johannes Röntgen, Dutch composer, dies at 70
Assassination
Drug Overdose
Gunshot Wound
Murder
Plane Crash
Suicide