- Apr 1 Olga Rei, Russian television personality
- Apr 2 Meryl Cassie, New Zealand actress and singer (The Tribe), born in George, Cape Province, South Africa
- Apr 3 Jonathan Blondel, Belgian footballer (Club Brugge midfielder), born in Ypres, Belgium
- Apr 3 Maxi López, Argentine footballer (Udinese), born in Buenos Aires, Argentina
- Apr 4 Arkady Vyatchanin, Russian-Serbian backstroke swimmer, born in Vorkuta, Russia
- Apr 4 Augustin Hadelich, Italian-German-American Grammy-winning classical violinist, born in Cecina, Italy
- Apr 4 Carolina Gaitán, Colombian actress (Encanto), born in Villavicencio, Colombia
- Apr 5 Shin Min-a, South Korean model and actress
- Apr 6 Max Bemis, American rock singer-songwriter (Say Anything), and comic-book writer, born in New York City
- Apr 8 Ezra Koenig, American rock singer-songwriter, and guitarist (Vampire Weekend - "A-Punk"; "Oxford Comma"), and broadcaster (Time Crisis), born in New York City
- Apr 8 Kirsten Storms, American actress, born in Orlando, Florida
- Apr 8 Taran Noah Smith, American actor (Mark Taylor-Home Improvement), born in San Francisco, California
- Apr 9 Adam Loewen, Canadian baseball player, born in Surrey, British Columbia
- Apr 9 Linda Chung, Chinese-Canadian actress and singer, born in Maple Ridge, British Columbia, Canada
Mandy Moore (40 years old)
Apr 10 American singer ("Candy") and actress (This Is Us - "Rebecca Pearson"), born in Nashua, New Hampshire
- Apr 10 Zoe, 1st frozen-embryo child, born in Melbourne Australia
- Apr 11 Kelli Garner, American actress (Dreamland), born in Bakersfield, California
- Apr 13 Hiro Mizushima, Japanese actor, born in Tokyo
- Apr 14 Adán Sánchez, Mexican-American singer-songwriter, born in Torrance, California (d. 2004)
- Apr 14 JP Duminy, South African cricket all-rounder (46 Tests, 6 x 100, HS 166; 42 wickets; 199 ODIs; Western Province + 4 IPL teams), born in Cape Town, South Africa
- Apr 15 Ben Kasica, American rock guitarist (Skillet), born in St Louis, Missouri
- Apr 15 Cam Janssen, American ice hockey player
- Apr 16 Amelia Atwater-Rhodes, American author, born in Silver Spring, Maryland
Claire Foy (40 years old)
Apr 16 English actress (The Crown), born in Stockport, England
- Apr 16 Noah Fleiss, American actor, born in White Plains, New York
- Apr 18 America Ferrera, American actress (Ugly Betty), born in Los Angeles, California
- Apr 19 Lee Da-Hae, South Korean actress (My Girl), born in Seoul, South Korea
- Apr 20 Tyson Griffin, American mixed martial artist (UFC Fight of the Night x 5; Fight of the Year 2007), born in Sacramento, California
- Apr 21 Ashley Peldon, actress (Marsha-Guilding Light, Deceived), born in Staten Island, New York
- Apr 22 Amelle Berrabah, Moroccan-British singer (Sugababes - "Round, Round"), born in Aldershot, Hampshire, England
- Apr 22 Michelle Ryan, English actress
- Apr 23 Alexandra Kosteniuk, Russian chess grandmaster (Women's World Chess Champion 2008-10), born in Perm, Russia
- Apr 24 Michael League, American Grammy Award-winning jazz-funk fusion and world music bassist, composer, and bandleader (Snarky Puppy), born in Long Beach, California
- Apr 24 Tyson Ritter, American singer and songwriter (The All-American Rejects), born in Stillwater, Oklahoma
- Apr 25 Robert Andino, Cuban-American baseball player, born in Miami, Florida
- Apr 26 Mija Martina, Bosnian singer (Eurovision 2019 - "Ne Brini"), born in Mostar, Bosnia and Herzegovina
- Apr 26 Ryan O'Donohue, American actor (Byrds of Paradise, Boys are Back), born in Pomona, California
- Apr 27 Frank Carter, British musician (Gallows) and tattooist, born in Hemel Hempstead, Hertfordshire, England
Patrick Stump (40 years old)
Apr 27 American singer-songwriter (Fall Out Boy), born in Evanston, Illinois
- Apr 27 Pierre-Marc Bouchard, Canadian ice hockey player (Minnesota Wild, New York Islanders), born in Sherbrooke, Quebec
- Apr 29 Firass Dirani, Lebanese-Australian actor (Power Rangers Mystic Force), born in Sydney, Australia
- Apr 29 Phạm Văn Quyến, Vietnamese footballer
- Apr 30 Shawn Daivari, Persian-American professional wrestler and manager
About April 1984
How Old? 40 years old
Generation: Millennial
Leap Year: Yes
Greatest Generation
Silent Generation
Baby Boomer
Generation X
Millennial
Generation Z