Rory McIlroy (33 years old)
May 4 Irish golfer (US Open 2011, British Open 2014, PGA C'ship 2012, 14; FedEx Cup 2016, 19, 22), born in Holywood, Northern Ireland
- May 6 Dominika Cibulková, Slovakian tennis player (WTA Finals champion 2016), born in Bratislava, Slovakia
- May 9 C418 [Daniel Rosenfeld], German ambient musician, and video game and soundtrack composer (Minecraft; Beyond Stranger Things), born in Karl-Marx-Stadt, East Germany (now Chemnitz, Germany)
- May 10 Lindsey Shaw, American actress (Paige McCullers-Pretty Little Liars), born in Lincoln, Nebraska
- May 11 Ashleigh Buhai, South African golfer (British Women's Open 2022), born in Johannesburg, South Africa
- May 11 Cam Newton, American football quarterback (Heisman Trophy 2010, Auburn; NFL MVP 2015; Pro Bowl 2011, 13, 15; Carolina Panthers), born in Atlanta, Georgia
- May 11 Giovani dos Santos, Mexican footballer
- May 12 Megan Lovell, American singer and guitarist (Larkin Poe), born in Atlanta, Georgia
- May 22 Christian Sands, American jazz pianist and composer, born in New Haven, Connecticut
- May 24 G-Eazy [Gerald Earl Gillum], American rapper ("Me, Myself & I"; "No Limit"), born in Oakland, California
- May 24 Tara Correa-McMullen, American actress (Judging Amy), born in Westminster, Vermont (d. 2005)
- May 29 Ezekiel Ansah, Ghanaian NFL defensive end (Pro Bowl 2015, Seattle Seahawks), born in Accra, Ghana
- May 29 Riley Keough, American actress and model, grand daughter of Elvis Presley, born in Santa Monica, California
- May 29 Sanah Kadoura, Lebanese-Canadian jazz drummer and percussionist, born in Calgary, Alberta
- May 30 Kevin Covais, American singer (American Idol) and actor, born in Levittown, New York
- May 31 Marco Reus, German football player (Borussia Dortmund, German national team), born in Dortmund, West Germany
About May 1989
How Old? 33 years old
Generation: Millennial
Leap Year: No