2003 in basketball

Professional

 * Men
 * 2003 NBA Finals: San Antonio Spurs over the New Jersey Nets 4-2.  MVP:  Tim Duncan  (More information can be found at 2003-04 NBA season.)
 * 2002-03 NBA season
 * 2003 NBA Playoffs
 * 2003 NBA draft
 * 2003 NBA All-Star Game
 * Eurobasket: Lithuania 93, Spain 84
 * Women
 * WNBA Finals: Detroit Shock over Los Angeles Sparks 2-1. MVP:  Ruth Riley
 * 2003 WNBA season
 * 2003 WNBA Playoffs
 * 2003 WNBA draft
 * 2003 WNBA All-Star Game
 * Eurobasket Women: Russia def. Czech Republic

College

 * Men
 * NCAA Division I: Syracuse University 81, University of Kansas 78
 * National Invitation Tournament: University of Michigan
 * NCAA Division II: Northeastern State University 75, Kentucky Wesleyan College 64
 * NCAA Division III: Williams College 67, Gustavus Adolphus College 65
 * NAIA Division I Concordia 88, Mountain State 84 OT
 * NAIA Division II Oregon Tech 81, Bellevue (Neb.) 70
 * Women
 * NCAA Division I: University of Connecticut 73, University of Tennessee 68
 * Women's National Invitation Tournament: Auburn 64, Baylor 63
 * NCAA Division II: South Dakota State 65, Northern Kentucky University 60
 * NCAA Division III Trinity University (Tex.) 60, Eastern Connecticut State 58
 * NAIA Division I: Southern Nazarene (Okla.) 71, Oklahoma City University 70
 * NAIA Division II Hastings (Neb.) 59, Dakota Wesleyan (S.D.) 53

Naismith Memorial Basketball Hall of Fame

 * Class of 2003:
 * Leon Barmore
 * Francis D. "Chick" Hearn
 * Earl F. Lloyd
 * Meadowlark Lemon
 * Dino Meneghin
 * Robert L. Parish
 * James A. Worthy

Women's Basketball Hall of Fame

 * Class of 2003
 * Leon Barmore
 * Tara Heiss
 * Claude Hutcherson
 * Patsy Neal
 * Doris Rogers
 * Marsha Sharp

Professional

 * Men
 * NBA Most Valuable Player Award: Tim Duncan
 * NBA Rookie of the Year Award: Amar'e Stoudemire
 * NBA Defensive Player of the Year Award: Ben Wallace
 * NBA Coach of the Year Award: Gregg Popovich, San Antonio Spurs
 * Euroscar Award: Dirk Nowitzki, Dallas Mavericks and
 * Mr. Europa: Šarūnas Jasikevičius, Maccabi Tel Aviv and (also FC Barcelona)
 * Women
 * WNBA Most Valuable Player Award: Lauren Jackson, Seattle Storm
 * WNBA Defensive Player of the Year Award: Sheryl Swoopes, Houston Comets
 * WNBA Rookie of the Year Award: Cheryl Ford, Detroit Shock
 * WNBA Most Improved Player Award: Michelle Snow, Houston Comets
 * Kim Perrot Sportsmanship Award: Edna Campbell, Sacramento Monarchs
 * WNBA Coach of the Year Award: Bill Laimbeer, Detroit Shock
 * WNBA Finals Most Valuable Player Award: Ruth Riley, Detroit Shock

Collegiate

 * Combined
 * Legends of Coaching Award: Roy Williams, Kansas
 * Men
 * John R. Wooden Award: T. J. Ford, Texas
 * Naismith College Coach of the Year: Tubby Smith, Kentucky
 * Frances Pomeroy Naismith Award: Jason Gardner, Arizona
 * Associated Press College Basketball Player of the Year: David West, Xavier
 * NCAA basketball tournament Most Outstanding Player: Emeka Okafor, Connecticut
 * USBWA National Freshman of the Year: Carmelo Anthony, Syracuse
 * Associated Press College Basketball Coach of the Year: Tubby Smith, Kentucky
 * Naismith Outstanding Contribution to Basketball: Charles “Lefty” Driesell
 * Women
 * Naismith College Player of the Year: Diana Taurasi, Connecticut
 * Naismith College Coach of the Year: Gail Goestenkors, Duke
 * Wade Trophy: Diana Taurasi, Connecticut
 * Frances Pomeroy Naismith Award: Kara Lawson, Tennessee
 * Associated Press Women's College Basketball Player of the Year: Diana Taurasi, Connecticut
 * NCAA basketball tournament Most Outstanding Player: Diana Taurasi, UConn
 * Basketball Academic All-America Team: Kristine Austgulen, VCU
 * Carol Eckman Award: Marsha Sharp, Texas Tech University
 * USBWA National Freshman of the Year: Seimone Augustus, LSU
 * Associated Press College Basketball Coach of the Year: Geno Auriemma, Connecticut
 * List of Senior CLASS Award women's basketball winners: LaToya Thomas, Mississippi State
 * Nancy Lieberman Award: Diana Taurasi, Connecticut
 * Naismith Outstanding Contribution to Basketball: Betty Jaynes

Deaths

 * January 20 — Dan King, American NBA player (Baltimore Bullets) (born 1931)
 * January 29 — John Murphy, American BAA player (Philadelphia Warriors, New York Knicks) (born 1924)
 * February 9 — John Hyder, American college coach (Georgia Tech) (born 1912)
 * March 29 — Carl Ridd, Canadian Olympic player (1952) (born 1929)
 * April 5 — Helgi Jóhannsson, Icelandic basketball player and coach (born 1929)
 * April 16 — Jewell Young, All-American college player (Purdue), NBL player (Indianapolis Kautskys, Oshkosh All-Stars) (born 1913)
 * May 14 — Dave DeBusschere, American Hall of Fame NBA player (New York Knicks, Detroit Pistons) (born 1940)
 * May 14 — Al Fleming, American NBA player (Seattle SuperSonics) (born 1954)
 * May 23 — Weenie Miller, American college coach (VMI) (born 1922)
 * May 29 — Anthony Frederick, American NBA player (Indiana Pacers, Sacramento Kings, Charlotte Hornets) (born 1964)
 * June 16 — David Polansky, American college coach (CCNY) (born 1919)
 * June 22 — John Mandic, American NBA player (born 1919)
 * September 20 — Ernie Calverley, All-American player and coach at Rhode Island (born 1924)
 * October 16 — Chet Jaworski, All-American player (Rhode Island) (born 1916)
 * October 23 — Kevin Magee, Former All-American at UC Irvine and Maccabi Tel Aviv player (born 1959)
 * October 30 — Stan Szukala, American NBL player (Chicago Bruins, Chicago American Gears) (born 1918)
 * November 21 — Bill Haarlow, American NBL player (Whiting Ciesar All-Americans) (born 1913)
 * December 8 — Chuck Noe, American college coach (VMI, Virginia Tech, South Carolina, VCU) (born 1924)
 * December 9 — Norm Sloan, College basketball coach of the 1974 national champion NC State Wolfpack (born 1926)
 * December 26 — Gale Bishop, All-American college (Washington State) and BAA (Philadelphia Warriors) player (born 1922)