January 1, 2003
2003 CONCACAF Gold Cup — 2003 edition of the association football competition CONCACAF Gold Cup
2003 European heat wave — heat wave leading to record-breaking temperatures in Europe during mid 2003
2003 Rugby World Cup — 5th Rugby World Cup
2003 FIFA Women's World Cup — 2003 edition of the FIFA Women's World Cup
2003 FIFA Confederations Cup — 6th FIFA Confederations Cup, held in France
2003 Formula One World Championship — Motorsport competition
2003 World Championships in Athletics — 2003 edition of the World Championships in Athletics
Eurovision Song Contest 2003 — 48th edition of the Eurovision Song Contest
2003 in film — overview of film-related events during 2003
2003 World Men's Handball Championship — 2003 edition of the World Men's Handball Championship