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: Bandy World Championship 2003
- Biathlon: Biathlon World Championships 2003
- Boxing: 2003 World Amateur Boxing Championships
- Chess: FIDE World Chess Championship 2003
- 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
- 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
Famous quotes containing the word world:
“Every rational creature has all nature for his dowry and estate. It is his, if he will. He may divest himself of it; he may creep into a corner, and abdicate his kingdom, as most men do, but he is entitled to the world by his constitution.”
—Ralph Waldo Emerson (1803–1882)