The International Luge Federation (French: Fédération Internationale de Luge (FIL); German: Internationaler Rennrodelverband) is the main international federation for all luge sports. Founded by 13 nations at Davos, Switzerland in 1957, it has members of 53 national luge associations as of 2009^[update] and is based in Berchtesgaden, Germany.

The first luge competition took place on February 12, 1883, on a four-kilometer course between Davos and Klosters, Switzerland, with the co-winners from Australia and Switzerland having a time of 9 minutes, 15 seconds. Austria, Germany, and Switzerland founded the Internationaler Schlittensportsverband (ISSV – International Sled Sport Federation (in German)) in 1913 in Dresden, Germany. The first European Luge Championships took place in Reichenberg, Bohemia (now Liberec, Czech Republic) in 1914. World War I in Europe caused the ISSV operations to be suspended and prevented any additional competitions until 1927.

In 1927, the ISSV was reestablished with the second European Luge Championships taking place in Schreiberhau, Germany (now Szklarska Poręba, Poland) the following year with a women's competition included. The ISSV was absorbed into the Fédération Internationale de Bobsleigh et de Tobogganing (FIBT – International Bobsleigh and Tobagganing Federation (in French)) in 1935 and was part of the "Section de Luge" until the early 1950s.

At a 1954 International Olympic Committee (IOC) meeting in Athens, Greece, it was determined that luge would replace skeleton as a Winter Olympic discipline. Skeleton, which had been a sport both at the 1928 and 1948 Winter Olympics, would not return as an Olympic sport until the 2002 Winter Olympics in Salt Lake City. In 1955, the first World Luge Championships were held at Holmenkollen near Oslo, Norway. The FIL was established in Switzerland in 1957 with membership granted into the IOC at their congress in Sofia, Bulgaria that same year. Bert Isatitsch of Austria was elected President of the FIL.

At the 1959 IOC meeting in Munich, West Germany, luge was approved for inclusion into the 1964 Winter Olympics in Innsbruck with competitions taking place in neighboring Igls. 12 nations took part in the first Winter Olympic luge competitions with timing taking place in 1/100ths of a second. Following a tie in the men's doubles competition between East Germany and Italy at the 1972 Winter Olympics in Sapporo, Japan, the FIL began timing all of their competition in 1/1000ths of a second, a practice that continues as of 2009. The first natural track European championships took place in Kapfenberg, Austria in 1970 while the first natural track World Championships took place in Inzing, Austria in 1979. The first Junior World Championships on artificial track took place at Lake Placid, New York, United States three years later.

Isatitich died suddenly on February 8, 1994, and then Vice-President for Sport Josef Fendt took over as Acting President. Fendt would be named president at the FIL congress in Rome, Italy later that year, a position he held until 2020.

In 2025, the federation's French name changed from Fédération Internationale de Luge de Course to Fédération Internationale de Luge.

The FIL governs competitions on artificial tracks and natural tracks at both the European and World Championship levels. At the Winter Olympics, only artificial track competitions are contested. The events at the European and World Championships are men's singles, men's doubles, women's singles, and a team event consisting of one run each from men's singles, men's doubles, and women's singles.