The FIS Alpine World Ski Championships are organized by the International Ski Federation (FIS). The first world championships in alpine skiing were held in 1931. During the 1930s, the event was held annually in Europe, until interrupted by the outbreak of World War II, preventing a 1940 event. An event was held in 1941, but included competitors only from nations from the Axis powers (or nations not at war with them), and the results were later cancelled by the FIS in 1946 because of the limited number of participants, so they are not considered official.
Following the war, the championships were connected with the Olympics for several decades. From 1948–82, the competition was held every two years, with the Winter Olympics acting as the World Championships in Olympic years, and a separate competition held in even-numbered non-Olympic years. The 1950 World Championships in Aspen were the first official championships separate of the Olympics since 1939, and the first held outside of Europe.
During Olympic years, extra World Championships medals were awarded in the combined event, using the results of the slalom and downhill events, as the combined did not return as an official Olympic event until 1988. Since 1985, the World Championships have been scheduled in odd-numbered years, independent of the Winter Olympics. A lack of snow in southern Spain in 1995 caused a postponement of the World Championships to the following year.
A total of 12 countries have hosted the FIS Alpine World Ski Championships, including those which were shared with the WInter Olympics. All of the top-7 on the list of nations which have won FIS World Cup races have been selected as host at least twice. The World Championships have been held only once in the Southern Hemisphere, in 1966 in Portillo, Chile in August. The complete list, including future scheduled Championships, but not the unofficial 1941 event:
These tables do not include medals won at the Winter Olympics between 1948 and 1980, even if these were also World Championships. The mixed team event is included for both genders, therefore the total will not add up for some countries. This table is current up to the end of the FIS Alpine World Ski Championships 2013.