2017 World Championship
- 2017 Artistic Gymnastics World Championships
- 2017 Bandy World Championship
- 2017 FIA Formula One World Championship
- 2017 FIA World Endurance Championship
- 2017 FIA World Rallycross Championship
- 2017 Men's World Ice Hockey Championships
- 2017 UCI Road World Championships
- 2017 UCI Track Cycling World Championships
- 2017 Women's Ice Hockey World Championships
- 2017 World Aquatics Championships
- 2017 World Championships in Athletics
- 2017 World Cup (disambiguation)
- 2017 World Figure Skating Championships
- 2017 World Men's Handball Championship
- 2017 World Rally Championship
- 2017 World Touring Car Championship season
- 2017 World Women's Handball Championship
- Biathlon World Championships 2017
- FIS Alpine World Ski Championships 2017
- FIS Freestyle World Ski Championships 2017
- FIS Nordic World Ski Championships 2017