- Mar 1 Travis Kvapil, American auto racer (NASCAR Craftsman Truck Series champion 2003), born in Janesville, Wisconsin
- Mar 4 Hiram Bocachica, Puerto Rican baseball player
- Mar 4 Thierry Renaer, Belgian field hockey player
- Mar 5 Adriana Serra-Zanetti, Modena Italy, tennis star (1995 Moscow semi)
- Mar 5 Paul Konerko, American baseball player
- Mar 8 Hines Ward, American football player
- Mar 8 Juan Encarnacion, American baseball player
- Mar 10 Barbara Schett, Austrian tennis player, born in Innsbruck, Austria
- Mar 11 Thomas Gravesen, Danish footballer
- Mar 14 Sarah Ulmer, New Zealand track cyclist (Olympic gold individual pursuit 2004; World C'ship gold 2004), born in Auckland, New Zealand
- Mar 16 Abraham Núñez, Dominican baseball player
- Mar 17 Álvaro Recoba, Uruguayan footballer
- Mar 17 Scott Downs, American baseball player
- Mar 18 Jovan Kirovski, American soccer player
- Mar 18 Michael Spillane, American wrestler, better known as Mike Quackenbush
- Mar 18 Scott Podsednik, American baseball player
- Mar 18 Tomokazu Ohka, Japanese baseball player
- Mar 19 Alessandro Nesta, Italian footballer
- Mar 23 Chris Hoy, Scottish track cyclist (6 x Olympic gold, most successful Olympic cyclist ever; 11 x World C'ship gold), born in Edinburgh, Scotland
- Mar 23 Jeremy Newberry, American football player
- Mar 23 Joel Peralta, Dominican MLB baseball relief pitcher, 2005-16 (Kansas City Royals, Tampa Bay Rays, and six other teams), born in Bonao, Dominican Republic
- Mar 23 Nolan Baumgartner, NHL defenseman (Washington Capitals), born in Calgary, Alberta
- Mar 23 Ricardo Zonta, Brazilian racing car driver
- Mar 24 Aaron Brooks, American NFL quarterback (New Orleans Saints Hall of Fame), born in Newport News, Virginia
- Mar 24 Aliou Cissé, Senegalese footballer and national coach, born in Ziguinchor, Senegal
- Mar 24 Danielle Garrett, American soccer forward (35 caps; Carolina Courage; NCAA Div I record for goals & points University of Florida) and manager (LSU, Eckerd), born in Camp Hill, Pennsylvania
Peyton Manning (48 years old)
Mar 24 American football quarterback (Super Bowl 2006, 15; 5 x NFL MVP; 14 x Pro Bowl; Indianapolis Colts, Denver Broncos), born in New Orleans, Louisiana
- Mar 25 Francis Bellew, Irish Gaelic footballer
Wladimir Klitschko (48 years old)
Mar 25 Ukrainian boxer (2-time world heavyweight champion; Olympic gold super-heavyweight 1996), born in Semey, Kazakhstan
Jennifer Capriati (48 years old)
Mar 29 American tennis player (Olympic gold women's singles 1992; Australian Open 2001, 02; French Open 2001; World #1 2001), born in New York City
- Mar 30 Chris Canty, American cornerback (New England Patriots), born in Long Beach, California
- Mar 30 Obadele Thompson, Barbadian sprinter (Olympic bronze 100m at Sydney 2000), born in Bridgetown, Barbados
- Mar 30 Toby Gowin, American NFL punter (Dallas Cowboys), born in Jacksonville, Texas
About March 1976
How Old? 48 years old
Generation: Generation X
Leap Year: Yes
Baseball Players
Basketball Stars
Boxers
Footballers
NFL Stars
Tennis Champions