The International Ice Hockey Federation World Under 20 Championship (colloquially known as the World Junior Hockey Championship, usually abbreviated WJHC) is an annual event organized by the International Ice Hockey Federation (IIHF) for national under-20 ice hockey teams from around the world. It is traditionally held in late December, ending in the beginning of January.

The main tournament features the top ten ranked hockey nations in the world, comprising the 'Top Division', from which a world champion is crowned. There are also three lower pools—divisions I, II and III—that each play separate tournaments playing for the right to be promoted to a higher pool, or face relegation to a lower pool.

The 2012 World Junior Ice Hockey Championships took place in Calgary and Edmonton, Alberta in Canada with Sweden beating Russia in the gold medal match. The next tournament will take place in Ufa, Russia in 2013.

First held in 1977 (1974–1976 were not official tournaments) as a relatively obscure tournament, the WJHC has grown in prestige, particularly in Canada, where the tournament ranks as one of the most important events on the sports calendar.

The World Junior Figure Skating Championships ("World Juniors" or "Junior Worlds") is an annual figure skating competition sanctioned by the International Skating Union in which younger figure skaters compete for the title of World Junior Champion. The ISU guidelines for junior eligibility have varied throughout the years; the current requirements are for the competitor to have reached the age of 13 by the previous 1 July, but not yet 19, except for men competing in pair skating and ice dancing, where the upper limit is 21.

This event is one of the four annual ISU figure skating Championships and is considered the most prestigious international competition for juniors. Skaters compete in the categories of men, ladies, pairs, and ice dancing.

In 2011, the event was held in Gangneung, Republic of Korea from 28 February to 6 March. In 2012, it was held in Minsk, Belarus from 27 February to 4 March.

The first World Junior Championships were held in March 1976 in Megève, France, and were originally named the "ISU Junior Figure Skating Championships". In 1977 the championships were held again under the same name at the same place. In 1978 these championships were officially renamed the "World Junior Figure Skating Championships", and held once again in Megève, France. Since then, the location has changed each year.

Sidney Patrick Crosby, ONS (born August 7, 1987) is a Canadian professional ice hockey player who is captain of the Pittsburgh Penguins of the National Hockey League (NHL). Crosby was drafted first overall by the Penguins out of the Quebec Major Junior Hockey League (QMJHL). During his two-year major junior career with the Rimouski Océanic, he earned back-to-back CHL Player of the Year awards and led his club to the 2005 Memorial Cup final. Nicknamed "The Next One", he was one of the most highly regarded draft picks in hockey history, leading many to refer to the 2005 Draft Lottery as the "Sidney Crosby Sweepstakes".