2003 World Championships

2003 World Championships may refer to:


 * Alpine skiing: Alpine World Ski Championships 2003
 * Aquatics: 2003 World Aquatics Championships
 * Athletics: 2003 World Championships in Athletics
 * Cross-country running: 2003 IAAF World Cross Country Championships
 * Road running: 2003 IAAF World Half Marathon Championships
 * Badminton: 2003 IBF World Championships
 * Bandy: 2003 Bandy World Championship
 * Biathlon: Biathlon World Championships 2003
 * Boxing: 2003 World Amateur Boxing Championships
 * Curling:
 * 2003 World Men's Curling Championship
 * 2003 World Women's Curling Championship
 * Darts: 2003 BDO World Darts Championship
 * Darts: 2003 PDC World Darts Championship
 * Figure skating: 2003 World Figure Skating Championships
 * 2003 World Artistic Gymnastics Championships
 * Ice hockey: 2003 Men's World Ice Hockey Championships
 * Ice hockey: 2003 Women's World Ice Hockey Championships
 * Netball: 2003 Netball World Championships
 * Nordic skiing: FIS Nordic World Ski Championships 2003
 * Speed skating:
 * Allround: 2003 World Allround Speed Skating Championships
 * Sprint: 2003 World Sprint Speed Skating Championships
 * Single distances: 2003 World Single Distance Speed Skating Championships