The International Ice Hockey Federation (IIHF; French: Fédération internationale de hockey sur glace; German: Internationale Eishockey-Föderation) is a worldwide governing body for ice hockey and in-line hockey. It is based in Zurich, Switzerland, and has 81 members. It manages international ice hockey tournaments and maintains the IIHF World Ranking. IIHF Women’s World Championship 2020

Although the IIHF governs international competitions, the IIHF has no authority on hockey in North America or the rules of the National Hockey League (NHL). Hockey Canada and USA Hockey federations have their own rulebooks, while non-North American federations usually follow the IIHF rules.

Decisions of the IIHF can be appealed through the Court of Arbitration for Sport in Lausanne, Switzerland.

The IIHF maintains its own hall of fame for international ice hockey. The IIHF Hall of Fame was founded in 1997, and has been located within the Hockey Hall of Fame since 1998.