- Apr 1 Cynthia Lennon (née Powell), first wife of Beatle John Lennon (1962-68), and mother of singer, photographer, activist Julian Lennon, dies of cancer at 75
- Apr 1 Dave Ball, British rock guitarist (Procul Harum), dies of cancer at 65
- Apr 1 Eddie LeBaron, American NFL quarterback (Pro Bowl 1955, 57, 58, 62; Washington Redskins, Dallas Cowboys), dies at 85
- Apr 1 John Paul Hammerschmidt, American politician (Rep-R-AR, 1967-93), dies at 92
- Apr 2 Doug Sax, American mastering engineer (Bob Dylan, The Doors, Pink Floyd, Ray Charles), dies of cancer at 78
- Apr 2 Robert Schuller, American Christian televangelist (Glass Cathedral; Hour of Power), dies at 88
- Apr 3 Andrew Porter, British organist, opera director, music critic, and librettist, dies at 86
- Apr 3 Bob Burns, American drummer (Lynyrd Skynyrd), dies in a car crash at 64
- Apr 3 Sarah Brady, American gun-control activist, dies at 73
- Apr 4 Elmer Lach, Canadian Hockey HOF center (Stanley Cup 1944, 46, 53 Montreal Canadiens; Hart Trophy 1945; Art Ross Trophy 1948; 5 x NHL All Star), dies of a stroke at 97
- Apr 4 John Read, British businessman, CEO (TSB Group), dies at 97
- Apr 5 Claudio Prieto, Spanish composer (Solo a Solo; Cantata manriqueña), dies at 80
- Apr 5 Richard Dysart, American actor (Leland MacKenzie-LA Law, The Last Days of Patton), dies at 86
- Apr 6 Dave Ulliott, English poker player (World Series of Poker bracelet 1997; World Poker Open 2003), dies of colon cancer at 61
- Apr 6 David Leon Kaplan, American-Canadian music professor (University of Saskatchewan, 1960-82), conductor (Saskatoon Symphony, 1962-72), and composer, dies at 91
- Apr 6 Dollard St. Laurent, Canadian ice hockey player, dies at 85
- Apr 6 James Best [Jewel Franklin Guy], American actor (The Dukes of Hazzard, Sounder), dies at 88
- Apr 6 Milton Delugg, American pianist, accordion player, composer ("Hoop-Dee-Do"; "Santa Claus Conquers The Martians"), and orchestra leader (The Tonight Show, 1966; The Paul Winchell Show; The Gong Show), dies at 96 [1]
- Apr 7 Ad de Besten, Dutch poet, dies at 92
- Apr 7 Geoffrey Lewis, American actor (Earl-Flo, Gun Shy), dies at 79
- Apr 7 Kardam, Prince of Turnovo, eldest son of King Simeon II of Bulgaria and his wife Doña Margarita Gómez-Acebo y Cejuela, dies at 52
- Apr 7 Stan Freberg, American satirist, ad executive and cartoon voice (Bertie), dies at 88
- Apr 9 Margaret Rule, British archaeologist (Mary Rose Tudor warship), dies at 86
- Apr 9 Pim Lier, Dutch lawyer and illegitimate son of Prince Consort Henry, dies at 96
Richie Benaud (1930-2015)
Apr 10 Australian cricket all-rounder and captain (62 Tests, 3 x 100s, 248 wickets; NSW CA) and broadcaster (9 Network, BBC), dies from skin cancer at 84
Günter Grass (1927-2015)
Apr 13 German writer, playwright (The Tin Drum) and Nobel Prize laureate (1999), dies at 87
- Apr 13 Thelma Long, Australian tennis player (Australian C'ship singles 1952, 54; 12 x doubles; 4 x mixed doubles; French C'ship mixed doubles 1956), dies at 96
- Apr 14 Percy Sledge, American soul singer ("When A Man Loves A Woman"), dies at 73
- Apr 15 Jonathan Crombie, Canadian actor (Anne of Green Gables), dies of a brain hemorrhage at 48
- Apr 16 Martin Quittenton, British rock and blues guitarist (Steamhammer), and songwriter ("Maggie May"; "You Wear It Well"), dies at 69
- Apr 18 Joseph Lechleider, American electrical engineer (invented DSL/high speed internet technology), dies at 82
- Apr 19 Richard Anthony [Btesh], Syrian-French pop singer, and songwriter ("Aranjuez mon amour"; "Amoureux de ma femme"), dies at 77
- Apr 19 Roy Mason [Baron Mason of Barnsley], British defense secretary and Labour MP, dies at 91
- Apr 20 Aharon Lichtenstein, Orthodox Jewish rabbi, dies at 81
- Apr 20 Bob St. Clair, American NFL football player, 1953-63 (San Francisco 49ers), known as "The Geek", dies at 84
- Apr 20 Raymond Carr, English historian and warden (St Antony's College Oxford), dies at 96
- Apr 21 Duncan Watson, British solicitor and disability activist (President of World Blind Union, 1988-92), dies at 88
- Apr 21 Ian Todd, English surgeon, President of the Royal College of Surgeons (1986-89), dies at 94
- Apr 23 Sawyer Sweeten, American actor (Everyone Loves Raymond), commits suicide at 19
- Apr 24 Lord Michael Mustill, British barrister and judge (Lord Justice of Appeal. 1992-97), dies at 83
- Apr 26 Jayne Meadows, American actress (Dark Delusion; David and Bathsheba) & wife of Steve Allen, dies of natural causes at 95
- Apr 26 Marcel Pronovost, Canadian Hockey HOF defenceman (11 x NHL All Star games; Stanley Cup 1950, 52, 54, 55 Detroit RWs, 1967 Toronto MLs), dies at 84
- Apr 27 Bodil Schmidt-Nielsen, Danish-born American physiologist who was the first female president of the American Physiological Society, dies at 96
- Apr 27 Gene Fullmer, American boxer (World Middleweight title 1957; NBA [WBA] World Middleweight title 1959-62), dies at 83
- Apr 27 Rolf Smedvig, American classical trumpet player (Boston Symphony, 1971-81; Empire Brass, 1972-2015), and educator (Boston University), dies of a heart attack at 62
- Apr 27 Suzanne Crough, American child actress (The Partridge Family), dies at 52
- Apr 28 Jack Ely, American singer and guitarist (The Kingsmen - "Louie, Louie"), dies at 71
- Apr 29 Brian Sedgemore, British MP (Labour Party 1974-79 and 1983-2005), dies at 78
- Apr 29 Calvin Peete, American golfer (12 PGA Tour titles), dies of lung cancer at 71
- Apr 29 Jean Nidetch, American businesswoman and founder of Weight Watchers, dies at 91
- Apr 30 Ben E. King [Nelson], American soul singer (Stand By Me), dies at 76
- Apr 30 Ronald Senator, British composer (Holocaust Requiem), and educator (Musicolor), dies in a house fire at 89
Assassination
Drug Overdose
Gunshot Wound
Murder
Plane Crash
Suicide