- Apr 4 Robbie Rist, American actor (Oliver-Brady Bunch) and musician, born in Los Angeles, California
- Apr 5 Christopher "Kid" Reid, American rapper (Kid 'n Play - "Ain't Gonna Hurt Nobody"), actor and comedian, born in The Bronx, New York City
- Apr 6 Amy Jo Ellis, American country-folk singer-songwriter ("Welcome The Day"), born in Modjeska Canyon, California
- Apr 6 Johnny Dee [DiTeodoro], American heavy metal drummer (Britny Fox - "Boys in Heat"; "King Kobra"), born in Conshohocken, Pennsylvania
- Apr 8 Biz Markie [Marcel Hall], American rapper, DJ and record producer ("Just A Friend"), born in New York City (d. 2021)
- Apr 9 Soyo Oka, Japanese musician, born in Nishinomiya City, Hyogo, Japan
- Apr 10 Felicia Collins, American guitarist (David Letterman), born in Albany, New York
- Apr 10 Reni [Alan John Wren], English pop drummer (Stone Roses - "Fools Gold"), born in Manchester, England
- Apr 11 Johann Sebastian Paetsch, American cellist and musician, born in Colorado Springs
- Apr 11 Steve Azar, American country singer and songwriter ("I Don't Have to Be Me ('til Monday)"), born in Greenville, Mississippi
- Apr 12 Amy Ray, American folk-rock singer and songwriter (Indigo Girls - "Closer To Fine"), born in Decatur, Georgia
- Apr 13 Bill D'Angelo, American heavy metal guitarist (Femme Fatale), born in Albuquerque, New Mexico (d. 2005)
- Apr 16 Dave Pirner, American rock singer-songwriter (Soul Asylum - "Runaway Train"; "Misery"), born in Minneapolis, Minnesota
- Apr 16 Esbjörn Svensson, Swedish jazz pianist (Seven Days Of Falling), born in Skultuna, Sweden (d. 2008)
- Apr 17 Maynard James Keenan, American singer (Tool; A Perfect Circle), born in Ravenna, Ohio
- Apr 18 Bez [Mark Berry], English percussionist and dancer (Happy Mondays), born in Bolton, Lancashire
- Apr 20 George Pehlivanian, French-American symphonic and opera conductor, born in Beirut, Lebanon
- Apr 23 Gen [Simon Matthews], British pop drummer (Jesus Jones - "Right Here, Right Now"), born in Wiltshire, England
- Apr 23 Gianandrea Noseda, Italian conductor (National Symphony (D.C.), 2017-27; Zurich Opera, 2021-28; BBC Philharmonic, 2002-11), born in Sesto San Giovanni, Italy
- Apr 25 Andy Bell, English singer (Erasure - "Aftermath (Here We Go)"; "Oh L'Amour"), born in Dogsthorpe, Peterborough, England
- Apr 28 Noriyuki Iwadare, Japanese video game music composer, born in Matsumoto City, Nagano, Japan
- Apr 30 Barrington Levy, Jamaican reggae and dancehall singer ("Englishman"), born in Clarendon, Jamaica
About April 1964
How Old? 60 years old
Generation: Baby Boomer
Leap Year: Yes