The International Bobsleigh and Skeleton Federation (IBSF) is the international sports federation for the sliding sports of Bobsleigh and Skeleton. It was founded on 23 November 1923 by the delegates of Great Britain, France, Switzerland, Canada, and the United States at the meeting of their first International Congress in Paris, France. In June 2015, it announced a name change from FIBT to IBSF. The federation's headquarters are in Lausanne, Switzerland.

Bobsleigh or bobsled is a winter sport in which teams of 2 to 4 athletes make timed runs down narrow, twisting, banked, iced tracks in a gravity-powered sleigh. International bobsleigh competitions are governed by the International Bobsleigh and Skeleton Federation.