- Apr 3 Jack Ryder, Australian cricket all-rounder (20 Tests, 1,394 runs @ 51.62), dies at 87
- Apr 4 Jeno Zador, composer, dies at 82
- Apr 5 John Marriott, dies at 83
- Apr 7 Jim Thompson, American author (The Killer Inside Me), dies at 70
- Apr 7 Siegfried Buback, German Federal Prosecutor, assassinated by far-leftist militant group Red Army Faction, at 57
- Apr 8 Frank Milan, American actor (Witness), dies at 71
- Apr 11 Jacques Prévert, French poet and screenwriter (b. 1900)
- Apr 11 Karen Krantzcke, Australian tennis player (Australian Open doubles 1968; Federation Cup 1970), dies of a heart attack whilst jogging at 31
- Apr 12 Philip K Wrigley, American baseball executive (owner Chicago Cubs 1932-77), dies of a gastrointestinal hemorrhage at 82
- Apr 14 Riekus Waskowsky, Dutch poet, dies at 44
- Apr 17 Marjorie Gateson, American actress (One Man's Family), dies at 86
- Apr 17 William Cardinal Conway, Northern Irish clergyman (b. 1913)
- Apr 18 Irene Steer, Welsh swimmer (Olympic gold GB 4 x 100m relay 1912), dies at 87
- Apr 19 Günter Bruno Fuchs, German writer, poet and artist, dies at 48
- Apr 20 Bryan Foy, director/writer, dies at 80
- Apr 20 Len Johnson, Australian cricket fast bowler (1 Test, 6 wickets, BB 3/8; Queensland), dies at 58
- Apr 20 Wilmer Allison, American tennis player (US Nat C'ship 1935), dies at 72
- Apr 21 Milton "Gummo" Marx, American comic (Marx Brothers), dies at 84
- Apr 22 Charles Sanford, American orchestra leader (Your Show of Shows), dies at 71
- Apr 27 Joe Garland, American big band jazz saxophonist, arranger, and composer (In the Mood; Serenade To A Savage), dies at 73
- Apr 27 Stanley Adams, American character actor (Star Trek - "Cyrano Jones"; Breakfast at Tiffany's; Lilies of the Field), commits suicide at 62
- Apr 28 Ricardo Cortez [Jacob Krantz], American actor and director (The Maltese Falcon), dies at 76
- Apr 28 Sepp Herberger, German soccer manager (Germany 1936–42; West Germany 1950-64) and striker (3 caps; SV Waldhof Mannheim 127 games), dies at 80
- Apr 30 Clive Douglas, Australian composer (Kaditcha; Carwoola), conductor (Australian Broadcasting Commission, 1938-68, and educator, dies at 73
Assassination
Drug Overdose
Gunshot Wound
Murder
Plane Crash
Suicide