The World Allround Speed Skating Championships are a series of speed skating events held annually to determine the best allround speed skater of the world. The event is held over two days, with all skaters entering the first three distances and the best eight skaters over these distances getting to ride the last event. The results of the races are converted to points, and the skater with lowest total score wins the championship.
The International Skating Union has organised the World Allround Speed Skating Championships for Men since 1893. Unofficial Championships were held in the years 1889–1892.
The International Skating Union has organised the World Allround Speed Skating Championships for Women since 1936. Unofficial championships were held in the years 1933–1935.
The International Skating Union has organised the World Sprint Speed Skating Championships for Men since 1970. The first two years (1970–1971), they were called the ISU Sprint Championships.
The International Skating Union has organised the World Sprint Speed Skating Championships for Women since 1970. The first two years, they were called the ISU Sprint Championships.
The 2007 KNSB Dutch Allround Championships in speed skating were held in the Thialf stadium in Heerenveen, Netherlands, on 23 and 24 December 2006. Although the event took place in December 2006 this was the 2007 edition as it is part of the 2006–07 speed skating season.
The 2007 World Sprint Speed Skating Championships were held in Vikingskipet, Hamar, on 20–21 January 2007. They were the 36th World Championships, and it was the third time the Championships were held in Hamar. Several of the world's top skaters, including the top two from the 2006 men's and women's standings, did not take part in the competition, while Lee Kang-seok (men), Lee Sang-hwa and Wang Beixing (women), all among the top three in the 500 meter World Cup rankings, did not take part as they are competing in other colliding tournaments.
The 2008 KNSB Dutch Allround Championships in speed skating were held at the Kardinge ice stadium in Groningen, Netherlands on 27 and 28 December 2007. Although the event took place in December 2007 this was the 2008 edition as it is part of the 2007-08 speed skating season.
The 2010 KNSB Dutch Allround Championships in speed skating were held at the Thialf ice stadium in Heerenveen, Netherlands on 6 and 7 March 2010. The championships were part of the 2009-2010 speed skating season.
The 1996 World Allround Speed Skating Championships were held on 14–16 February 1997 in the Ludwig-Schwabl-Stadion stadium in Inzell, Germany. This was the first World Championships where men and women competed at the same time and venue.
The 2017 European Speed Skating Championships were held in Heerenveen, Netherlands, from 6 to 8 January 2017. Skaters from 12 countries participated. It was the first time that allround and sprint were held at the same time and venue.
The 56th edition of the Men's World Allround Speed Skating Championships was held on 11 and 12 February 1995 at the Ice Rink Piné, Baselga di Pinè in Italy.
The 55th edition of the Men's World Allround Speed Skating Championships was held on 11 and 12 March 1994 at the Ruddalens Idrottsplats in Göteborg, Sweden.
The 36th edition of the World Allround Speed Skating Championships for Women was held on 22 and 23 February in Assen at the De Bonte Wever ice rink.
The 44th edition of the World Allround Speed Skating Championships for Women took place on 19 and 20 February 1983 in Karl-Marx-Stadt at the Eisschnelllaufbahn ice rink.
The 51st edition of the World Allround Speed Skating Championships for Women took place on 10 and 11 February 1990 in Calgary at the Olympic Oval ice rink.
The men and women's world allround speed skating championships were held for the last time separately in 1995. The events were:
