2004 World Championships
- 2004 BDO World Darts Championship
- 2004 Continental Championships (disambiguation)
- 2004 IAAF World Cross Country Championships
- 2004 Men's World Ice Hockey Championships
- 2004 PDC World Darts Championship
- 2004 Women's World Ice Hockey Championships
- 2004 World Allround Speed Skating Championships
- 2004 World Cup (disambiguation)
- 2004 World Figure Skating Championships
- 2004 World Junior Championships (disambiguation)
- 2004 World Men's Curling Championship
- 2004 World Single Distance Speed Skating Championships
- 2004 World Women's Curling Championship
- Bandy World Championship 2004
- Biathlon World Championships 2004
- FIDE World Chess Championship 2004