International Weightlifting Federation
- Country: Hungary
- Type: Sports
- Website: www.iwf.net
- Update: 05-02
The International Weightlifting Federation (abbreviated as IWF; referred to as IWF) is an international sports organization founded in 1905 and headquartered in Budapest, Hungary, and is the governing body of the sport of weightlifting and a member of the International Summer Olympic Federations.