IIHF World Junior Championship

Recurring ice hockey tournament for men's junior national teams

The IIHF World Junior Championship (WJC), sometimes referred to as World Juniors, 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 early January (beginning from Boxing Day to January 5). The tournament usually attracts the top hockey players in this age category. 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 competition's profile is particularly high in Canada, and this is partly for historical reasons in that prior to NHL players being allowed in the Winter Olympics, this was a rare tournament where the best western players faced the best players from the Soviet bloc, and the only other tournament of similar stature where this occurred was the irregularly scheduled Canada Cup invitational tournament. The tournament's stature in Canada can also be credited to Canada's strong performance in the tournament (it has won the gold medal twenty times since its inception), the role of hockey in Canadian culture, along with strong media coverage and fan attendance. As such, in recent years, nearly half of the tournaments have been held in Canadian cities, with the remainder being held in Europe and the United States. United States is the defending champion of the tournament, after defeating Sweden to win the 2024 edition in Gothenburg, Sweden.

The first official tournament was held in 1977, although the first three tournaments were held unofficially from 1974 to 1976. The tournament has been dominated by the teams from Canada and Soviet Union/CIS/Russia, together accounting for 33 of the 48 overall gold medals awarded (through 2024). The USSR won the first four official tournaments, while the Canadians put together five straight championships between 1993 and 1997, and another five straight from 2005 to 2009. Canada leads the all time gold medal count with 20 golds, while the Soviet Union, the CIS, and Russia combined have 13 golds. When it began, the World Junior Championship was a relatively obscure tournament. It has since grown in prestige, particularly in Canada, where the tournament ranks as one of the most important events on the sports calendar and during the holiday season. The Globe and Mail writer Bruce Dowbiggin credits TSN, along with Canada's strong performance at the tournament, for turning it from an obscure non event when it acquired the rights in 1991 (which had started to grow in prominence due to the 1987 Punch up in Piestany) to one of Canada's most beloved annual sports events, and at the same time cementing the link between Canadian nationalism and hockey, and inspiring the NHL's Winter Classic. Based on increasing attendances for countries repeatedly hosting the event, the popularity of the tournament seems to be growing in other nations as well. At editions of the tournament held in the country, games involving Team Canada consistently sell out NHL arenas, offering large profit guarantees to Hockey Canada and the IIHF. In the 21st century, Canada has and will continue to host the tournament every second or third year due to the significantly greater following the tournament has in Canada compared to other participating countries. Originally, Switzerland was selected to host the WJHC in 2010, but withdrew. Buffalo, New York, in the United States, hosted the tournament in 2011 and 2018; in both cases, proximity to Canada's population core in Southern Ontario was a key factor in the city winning the bidding rights. The tournament offers one of the most prestigious stages for young hockey players, significantly boosting a player's value for upcoming NHL Entry Drafts.

Canada, Finland, Sweden, and Czechoslovakia/Czechia have participated in all 44 IIHF Ice Hockey World Junior Championships as well as the three unofficial tournaments. The United States has participated in all except the unofficial tournament in 1976. USSR/CIS/Russia participated in all tournaments until the 2023 edition (having been suspended by the IIHF in February 2022). When Czechoslovakia peacefully split in 1993, Czechia remained in Pool A but Slovakia was placed in Pool C (now Division II). Slovakia was promoted to the top division for the 1996 Championships and has remained there since. When the Soviet Union broke up, Russia remained in Pool A, while all other former Soviet republics started competing in Pool C in 1993. Starting with the 1996 tournament, the competition was increased from an 8 team round robin to the current 10 team format, including elimination rounds. Since then, Switzerland has become a regular participant. Germany has been a frequent participant in the top pool, having played there roughly half the time in the past decade. Latvia, Belarus, and Kazakhstan have also each made a number of top division appearances since the early 1990s. Less frequent top pool appearances have been made by Austria, Denmark, France, Japan, Norway, Poland and Ukraine. At the most recent championship, held in Sweden in 2024, participating teams included Canada, Czechia, Finland, Germany, Latvia, Norway, Slovakia, Sweden, Switzerland, and the United States.

At the conclusion of each tournament, the Directorate of the IIHF presents awards to the Top Goalie, Forward, and Defenceman of the tournament. The media attending the event select an All Star team separately from this.