- May 1 Alain Bernard, French swimmer (Olympic gold 100m freestyle 2008, 4x100 freestyle relay 2012), born in Aubagne, France
- May 3 Joseph Addai, American football player, born in Houston, Texas
- May 3 Márton Fülöp, Hungarian footballer and goalkeeper, born in Budapest (d. 2015)
- May 3 Romeo Castelen, Dutch footballer, born in Paramaribo, Suriname
- May 6 Dani Alves da Silva, Brazilian football player (Paris Saint-Germain, Brazil national team), born in Juazeiro, Brazil
- May 9 Tyler Lumsden, American baseball player
- May 11 Frédéric Xhonneux, Belgian decathlete
- May 11 Matt Leinart, American College Football Hall of Fame quarterback (Heisman Trophy 2004, USC; NFL: Arizona Cardinals, Houston Texans) and broadcaster (Fox Sports), born in Santa Ana, California
- May 12 Charilaos Pappas, Greek footballer, born in Kavala, Greece
- May 13 Yaya Touré, Ivorian footballer (Barcelona), born in Bouaké, Ivory Coast
- May 16 Kyle Wellwood, Canadian ice hockey player
- May 17 Channing Frye, American basketball player
- May 17 Jeremy Sowers, American baseball player
- May 17 Nicky Hofs, Dutch footballer
- May 18 Gary O'Neil, English footballer (Portsmouth), born in Beckenham, England
- May 18 Vince Young, American football player, born in Houston, Texas
- May 22 John Hopkins, Anglo-American motorcycling racer
- May 27 Bobby Convey, American soccer player
- May 28 Steve Cronin, American soccer goalkeeper
About May 1983
How Old? 40 years old
Generation: Millennial
Leap Year: No
Baseball Players
Basketball Stars
Boxers
Footballers
NFL Stars
Tennis Champions