1999 World Championships
- 1999 BDO World Darts Championship
- 1999 Bandy World Championship
- 1999 Ford World Men's Curling Championship
- 1999 Ford World Women's Curling Championship
- 1999 IAAF World Cross Country Championships
- 1999 IAAF World Half Marathon Championships
- 1999 IAAF World Indoor Championships
- 1999 IBF World Championships
- 1999 IIHF Women's World Championship
- 1999 Men's World Ice Hockey Championships
- 1999 PDC World Darts Championship
- 1999 UCI Road World Championships
- 1999 World Allround Speed Skating Championships
- 1999 World Amateur Boxing Championships
- 1999 World Championships in Athletics
- 1999 World Cup (disambiguation)
- 1999 World Figure Skating Championships
- 1999 World Rowing Championships
- 1999 World Single Distance Speed Skating Championships
- Alpine World Ski Championships 1999
- Biathlon World Championships 1999
- FIDE World Chess Championship 1999
- FIS Nordic World Ski Championships 1999