- Jan 2 Ollie Pope, English cricket batsman (Test HS 205; Surrey CCC, Welsh Fire 100 CT), born in London, England
- Jan 15 Chloe Kelly, English footballer (Manchester City), born in Manchester, England
- Jan 18 Aitana Bonmati, Spanish football player (Barcelona, Spain), born in Vilanova, Spain
- Jan 20 Frances Tiafoe, American tennis player, born in Orlando, Florida
- Feb 1 Jazz Chisholm Jr., Bahamian MLB player (Florida Marlins), born in Nassau, Bahamas
- Feb 11 Margo Hayes, American rock climber, born in Boulder, Colorado
- Mar 4 Obi Toppin, American basketball power forward (NBA Slam Dunk Contest champion 2022; NY Knicks, Indiana Pacers), born in Brooklyn, New York
- Mar 10 Justin Herbert, American NFL player (LA Chargers), born in Eugene, Oregon
- Mar 18 Miltiadis Tentoglou, Greek athlete (Olympic gold long jump 2020), born in Grevena, Greece
- Mar 20 Allisen Corpuz, American golfer (US Open 2023), born in Honolulu, Hawaii
- Mar 24 Damar Hamlin, American NFL player (Buffalo Bulls), born in McKees Rocks, Pennsylvania
- Apr 2 Pleasantly Perfect, American thoroughbred racehorse (Breeders' Cup Classic 2003; Dubai World Cup 2004), born in Clovelly Farms, Louisiana (d. 2020)
- Apr 19 Shawn Raboutou, American rock climber, born in Boulder, Colorado
- May 5 Aryna Sabalenka, Belarusian tennis player (Australian Open women's singles 2023, 24; Australian Open doubles 2021; US Open doubles 2019), born in Minsk, Belarus
- May 14 Aaron Ramsdale, English football goalkeeper (Arsenal and England), born in Stoke-on-Trent, England
- May 29 Markelle Fultz, American basketball guard (2017 NBA Draft: #1 pick Philadelphia 76ers), born in Upper Marlboro, Maryland
- Jul 22 Federico Valverde, Uruguayan football player (Real Madrid, Uruguay), born in Montevideo, Uruguay
- Jul 23 Deandre Ayton, Bahamian basketball center (2018 NBA Draft: #1 pick Phoenix Suns), born in Nassau, Bahamas
- Jul 28 Nelly Korda, American golfer (US Women's PGA C'ship 2021, Chevron C'ship 2024; Olympic gold 2021), born in Bradenton, Florida
- Aug 7 Jalen Hurts, American football quarterback (NCAA C'ship 2018 University of Alabama; University of Oklahoma; Philadelphia Eagles), born in Houston, Texas
- Aug 12 Stefanos Tsitsipas, Greek tennis player (ATP Finals 2019; French Open 2021 runner-up), born in Athens, Greece
- Sep 19 Trae Young, American NBA player (Atlanta Hawks), born in Lubbock, Texas
- Sep 20 Rashid Khan, Afghan cricket spin bowler and captain (5 Tests, 34 wickets, BB 7/137; Sunrisers Hyderabad, Adelaide Strikers), born in Nangarhar, Afghanistan
- Sep 21 Tadej Pogačar, Slovenian road cyclist (Tour de France 2020, 21; 2022 runner-up), born in Komenda, Slovenia
- Oct 3 Angel Yin, American golfer (US Women's Open 2019 runner-up), born in Los Angeles, California
- Oct 29 Lance Stoll, Canadian-Belgian F1 racing driver, born in Montreal, Quebec
- Oct 30 Cale Makar, Canadian ice hockey defenceman (Stanley Cup, Conn Smythe Trophy, Norris Trophy 2022; Calder Trophy 2020; Colorado Avalanche), born in Calgary, Alberta
- Nov 2 Jordan Love, American NFL player (Green Bay Packers), born in Bakersfield, California
- Nov 4 Achraf Hakimi, Spanish-Moroccan footballer (Paris Saint-Germain), born in Madrid, Spain
- Nov 14 DeVonta Smith, American football wide receiver (Heisman Trophy 2020; University Alabama; Philadelphia Eagles), born in Amite City, Louisiana
- Nov 14 Sofia Kenin, American tennis player (Australian Open 2020), born in Moscow, Russia
- Nov 15 Hinako Shibuno, Japanese golfer (Women's British Open 2019), born in Okayama Prefecture, Japan
- Dec 17 Martin Odegaard, Norwegian footballer, youngest to play for Real Madrid, born in Drammen, Norway
Kylian Mbappé (25 years old)
Dec 20 French soccer forward (France, PSG, Monaco), born in Paris, France
- Dec 22 Casper Ruud, Norwegian tennis player (French Open 2022, 23 & US Open 2022 runner-up), born in Oslo, Norway
About 1998
How Old? 25 or 26 years old
Generation: Generation Z
Baseball Players
Basketball Stars
Boxers
Footballers
NFL Stars
Tennis Champions