- May 1 Alexei Smertin, Russian soccer midfielder/executive (55 caps; Zarya Leninsk-Kuznetsky, Bordeaux), born in Barnaul, Russia
- May 1 Austin Croshere, American basketball forward (Indiana Pacers) and broadcaster (Fox Sports Indiana Pacers analyst), born in Los Angeles, California
- May 1 Marc-Vivien Foé, Cameroon soccer midfielder (62 caps; collapsed during international match, died; Lens, West Ham, Lyon), born in Yaounde, Cameroon (d. 2003)
David Beckham (48 years old)
May 2 English soccer midfielder (115 caps [58 as captain]; Man Utd, Real Madrid, AC Milan, Paris SG, LA Galaxy) and owner (Inter Miami CF, Salford City), born in London, England
- May 2 Mark Johnson, baseball pitcher (Olympic bronze 1996), born in Dayton, Ohio
- May 8 Gastón Mazzacane, Argentine racing driver
- May 8 Jussi Markkanen, Finnish ice hockey player
- May 9 Brian Deegan, American freestyle motocross cyclist, born in Omaha, Nebraska
- May 10 Adam Deadmarsh, Canadian-American NHL center (Colorado Avalanche, Olympics 1998), born in Trail, British Columbia
- May 10 Hélio Castroneves, Brazilian race car driver
Jonah Lomu (1975-2015)
May 12 New Zealand rugby union winger (youngest ever All Black, 63 internationals), born in Auckland, New Zealand
- May 12 Lawrence Phillips, American football running back (Grey Cup, CFL All-Star 2002 Montreal Alouettes; St Louis Rams 1996-97), born in Little Rock, Arkansas (d. 2016)
Ray Lewis (48 years old)
May 15 American Pro Football Hall of Fame linebacker (13 × Pro Bowl; Super Bowl MVP 2000; Baltimore Ravens), born in Bartow, Florida
- May 18 John Higgins, Scottish snooker player (4-time world champion), born in Wishaw, Scotland
- May 19 London Fletcher, American football player
- May 19 Pretinha, Brazilian footballer
- May 20 Isaac Gálvez, Spanish cyclist (d. 2006)
- May 20 Mark Zupan, American quadriplegic rugby player
- May 22 Jaane Niinimaa, Finnish NHL defenseman (Finland Olympic bronze 1998, Flyers), born in Raahe, Finland
- May 22 Salvador Ballesta, Spanish footballer (Atlético Madrid, Valencia), born in Zaragoza, Spain
- May 23 Vincent Goossens, soccer player (Dordrecht '90)
- May 24 Katie King-Crowley, American ice hockey forward (USA, Olympics 1998), born in Salem, New Hampshire
- May 24 Marc Gagnon, Canadian short track speed skater (Olympic gold 1998, 2002), born in Chicoutimi, Quebec, Canada
- May 24 Yannis Goumas, Greek footballer (Greece national team), born in Ampelonas, Greece
- May 26 Travis Lee, baseball 1st baseman (Olympic bronze 1996), born in San Diego, California
- May 27 Michael Hussey, Australian cricketer
- May 28 Mike Fisher, soccer midfielder (Olympic gold 1996), born in Naperville, Illinois
- May 29 Alexander Zhurik, Belarusian hockey defenseman (Belarus, Olympics 1998), born in Minsk, Belarus
- May 29 Bianca Langham, Australian field hockey player (Olympic-96)
- May 30 Andrew Farrell, English rugby league and union footballer
About May 1975
How Old? 48 years old
Generation: Generation X
Leap Year: No