- Mar 1 Chris Webber, American basketball forward (NBA All-Star 1997, 2000–2003; Washington Bullets/Wizards, Sacramento Kings) and broadcaster (NBA Gametime Live; TNT), born in Detroit, Michigan
- Mar 2 Dejan Bodiroga, Serbian basketball forward (FIBA World Cup 1998 [MVP], 2002, Yugoslavia; EuroLeague Final Four MVP 2002, 03; Panathinaikos, FC Barcelona), born in Klek, Serbia
- Mar 2 Trevor Sinclair, English soccer winger (12 caps; Blackpool, West Ham, QPR, Manchester City), born in Dulwich, England
- Mar 3 Cory Raymer, NFL center (Washington Redskins)
- Mar 3 James Dexter, tackle (Arizona Cardinals)
- Mar 3 Jim Mills, tackle (San Diego Chargers)
- Mar 3 Romāns Vainšteins, Latvian cyclist
- Mar 3 Tisha Venturini, American soccer midfielder (134 caps; Olympic gold 1996; FIFA Women's World Cup gold 1999; North Carolina Tar Heels), born in Modesto California
- Mar 3 Winslow Oliver, running back (Carolina Panthers)
- Mar 4 Phillip Daniels, NFL defensive end (Seattle Seahawks)
- Mar 5 Nicole Pratt, Australian tennis star (1995 Futures Australia), born in Mackay, Queensland
- Mar 5 Yannis Anastasiou, Greek footballer
- Mar 6 Greg Ostertag, NBA center (Utah Jazz)
- Mar 6 Michael Finley, NBA guard/forward (Phoenix Suns/Dallas Mavericks)
- Mar 6 Terry Adams, pitcher (Chicago Cubs), born in Mobile, Alabama
- Mar 7 Ray Parlour, English footballer (Arsenal), born in Romford, England
- Mar 8 Justin Thompson, American baseball player
- Mar 8 Kurt Mollekens, Belgian racing car driver
- Mar 9 David Prinosil, German tennis star (1995 ATP Newport), born in Olomouc, Czechoslovakia
- Mar 10 Chris Sutton, English soccer striker, manager, broadcaster (1 cap; Blackburn Rovers, Celtic; BT Sport, BBC Radio 5 Live, BBC Sport.), born in Nottingham, England
- Mar 10 Mauricio Taricco, Argentine footballer
- Mar 11 Martin Hiden, Austrian footballer
- Mar 11 Mike Mihelic, CFL offensive tackle (Winnipeg Blue Bombers)
- Mar 11 Sammie Brennan, CFL defensive back (BC Lions)
- Mar 11 Tony Veland, NFL defensive back (Denver Broncos-Super Bowl 32)
- Mar 12 Gabriel Mendez, Australian soccer midfielder (9 caps; Sydney Olympic, St. George FC), born in Buenos Aires, Argentina
- Mar 13 Bobby Jackson, American NBA guard (Denver Nuggets), born in Salisbury, North Carolina
- Mar 13 Dan Wilkinson, American NFL defensive tackle (Cin Bengals), born in Dayton, Ohio
- Mar 13 Edgar Davids, Dutch soccer player (Ajax, AC Milan), born in Paramaribo, Suriname
- Mar 14 Chris Sullivan, American NFL defensive end (New England Patriots), born in North Attleborough, Massachusetts
- Mar 17 Jerome Woods, American football safety (Pro Bowl 2003; KC Chiefs), born in Memphis, Tennessee
- Mar 18 Marlon Kerner, NFL cornerback (Buffalo Bills)
- Mar 18 Rob Johnson, NFL quarterback (Jacksonville Jaguars)
- Mar 19 John Michels, American NFL tackle, 1996-99 (Green Bay Packers-Super Bowl XXXI, Philadelphia Eagles), and radiologist, born in La Jolla, California
- Mar 20 Nico Boje, South African cricketer (South African ODI left-arm spinner), born in Bloemfontein, South Africa
- Mar 20 Norman Tome, Australian soccer striker (Olyroos, Olympics 1996)
- Mar 21 Larry Bowie, American NFL running back, 1996-99 (Washington Redskins), born in Anniston, Alabama
- Mar 21 Stuart Nethercott, English footballer
- Mar 22 Joe Nedney, American NFL kicker (Arizona Cardinals), born in San Jose, California
- Mar 22 Luther Elliss, American NFL defensive end (Detroit Lions), born in Mancos, Colorado
- Mar 23 Jason Kidd, American Basketball HOF point guard (Olympic gold 2000, 08; NBA C'ship 2011 Dallas Mavericks; 10×NBA All-Star; 5×All-NBA First Team) and coach (Brooklyn Nets, Milwaukee Bucks, Dallas Mavs), born in San Francisco, California
- Mar 23 Jerzy Dudek, Polish footballer
- Mar 23 Naoko Sawamatsu, Nishinomiya Japan, tennis star (1994 Singapore)
- Mar 23 Rob Lazeo, CFL offensive tackle (Saskatchewan Roughriders)
- Mar 23 Wim Eyckmans, Belgian racing driver
- Mar 24 David Moravec, hockey forward (Team Czech Olympic gold 1998)
- Mar 24 Jacek Bąk, Polish footballer (Lyon), born in Lublin, Poland
- Mar 24 Josh Lakatos, trap shooter (Olympic silver 1996), born in Pasadena, California
- Mar 24 Philippe Boucher, Canadian NHL defenseman (LA Kings), born in Saint-Apollinaire, Quebec
- Mar 25 Andrei Nikolishin, Vorkuta Russia, NHL center (Hartford Whalers)
- Mar 25 Anthony Barness, English footballer
- Mar 25 Bob Sura, NBA guard (Cleveland Cavaliers)
- Mar 25 Ray Zellars, NFL fullback (New Orleans Saints)
- Mar 26 Matt Burke, Australian rugby union fullback who played 81 Tests; NSW Waratahs; Eastwood RFC) and broadcaster (Network 10), born in Sydney, Australia
- Mar 28 Andrew Whittall, cricketer (cousin of Guy Zimbabwe off-spinner 1996)
- Mar 29 Brad Bridgewater, American swimmer (Olympic gold 200m backstroke 1996), born in Charleston, West Virginia
- Mar 29 Marc Overmars, Dutch soccer winger (86 caps; Ajax, Arsenal, FC Barcelona) and executive (director of football Royal Antwerp FC), born in Emst, Netherlands
- Mar 30 Jan Koller, Czech footballer, born in Prague, Czechoslavakia
- Mar 30 Kareem Streete-Thompson, Caymanian-American 100m athlete and long jumper, born in Ithaca, New York
About March 1973
How Old? 51 years old
Generation: Generation X
Leap Year: No