The 2004 IIHF World Women's Championships were held March 30 – April 6, 2004 in Halifax and Dartmouth, Canada at the Halifax Metro Centre, and the Dartmouth Sportsplex. The Canadian national women's hockey team won their eighth straight World Championships. The event had 9 teams, because the 2003 event was cancelled due to the SARS epidemic, therefore no teams were relegated and the winners of the 2002 and 2003 Division I tournaments qualified. Canada won their 37th consecutive World Championship game before losing 3–1 in their third game. They later avenged their loss to the US by defeating them in the gold medal game 2–1. Sweden and Finland also met each other twice, with Finland winning the bronze medal game 3–2 improving on the earlier draw.
The 2005 Men's Ice Hockey Championships were held March 7 – May 15, 2005, in 7 cities in 6 countries: Vienna and Innsbruck, Austria (Championship); Debrecen, Hungary ; Eindhoven, the Netherlands ; Zagreb, Croatia ; Belgrade, Serbia and Montenegro ; Mexico City, Mexico. The competition also served as qualification for division placements in the 2006 competition. It was a major professional tournament, because of the 2004–05 NHL labor dispute. This international event was the 69th such event sanctioned by the International Ice Hockey Federation (IIHF). The championship was won by the Czech Republic.
The 2006 Men's Ice Hockey World Championships was the 70th such event hosted by the International Ice Hockey Federation. Teams representing 45 countries participated in four levels of competition. The competition also served as qualifications for division placements in the 2007 competition. In the Division I Championship held in April, Germany and Austria were promoted to the Championship division while Israel and Croatia were demoted to Division II. In the Division II competition, Romania and China were promoted, South Africa and New Zealand were relegated to Division III. In the Division III competition, Iceland and Turkey were promoted to Division II for 2007.
The 2003 Men's Ice Hockey World Championships was the 67th such event sanctioned by the International Ice Hockey Federation (IIHF). The competition also served as qualification for division placements in the 2004 competition. Canada won the gold medal, beating Sweden 3–2 in the final.
The 2007 IIHF Women's World Championships were held from April 3 to 10, 2007 in Winnipeg and Selkirk, Manitoba, Canada. There were no championships in 2006 due to the Torino Olympic tournament. Games were played at the MTS Centre and Selkirk Recreation Complex.
The 2008 Men's Ice Hockey World Championships was the 72nd such event hosted by the International Ice Hockey Federation. Teams representing 48 countries participated in four levels of competition. The competition also served as qualification for division placements in the 2009 competition. Russia won the Top Division tournament and became the world champions. In the Division I Championship held in April, Austria and Hungary were promoted to the Championship division, while South Korea and Estonia were demoted to Division II. In the Division II competition, Romania and Australia were promoted, Ireland and New Zealand were relegated to Division III. Greece won the Division III qualification in February, and competed in the Division III competition from March to April. In that competition, North Korea and South Africa were promoted to Division II for 2009.
The 2002 Men's Ice Hockey World Championships were held between 26 April and 11 May 2002 in Gothenburg, Karlstad and Jönköping, Sweden.
The 2007 IIHF World U18 Championships was an ice hockey tournament held in Rauma and Tampere, Finland. The championships began on April 11, 2007, and finished on April 22, 2007. Games were played at Äijänsuo Arena in Rauma and Tampere Ice Stadium in Tampere. Russia defeated the United States 6–5 in the final to claim the gold medal, while Sweden defeated Canada 8–3 to capture the bronze medal.
The 2006 IIHF World U18 Championships were held in Ängelholm and Halmstad, Sweden. The championships began on April 12, 2006 and finished on April 22, 2006. Games were played at Ängelholms Ishall in Ängelholm and Sannarps Isstadion in Halmstad. The United States of America defeated Finland 3–1 in the final to claim the gold medal, while the Czech Republic defeated Canada 4–1 to capture the bronze medal.
The 2005 IIHF World U18 Championships were held in České Budějovice and Plzeň, Czech Republic. The championships began on April 14, 2005, and finished on April 24, 2005. Games were played at Budvar Arena in České Budějovice and ČEZ Aréna in Plzeň. The United States of America defeated Canada 5–1 in the final to claim the gold medal, while the Sweden defeated Czech Republic 4–2 to capture the bronze medal.
The 2004 IIHF World U18 Championships were held in Minsk, Belarus. The championships began on April 8, 2004, and finished on April 18, 2004. Games were played at the Ice Palace and Palace sport in Minsk. Russia defeated the United States 3–2 in the final to claim the gold medal, while the Czech Republic defeated Canada 3–2 to capture the bronze medal.
The 2002 IIHF World U18 Championships were held in Piešťany and Trnava, Slovakia. The championships began on April 11, 2002, and finished on April 21, 2002. Games were played at Zimny Stadion in Piešťany and Zimny Stadion in Trnava. The US team finished first in the final round to capture the gold, while Russia and the Czech Republic captured the silver and bronze medal respectively. USA and Russia played the last game of the final round to determine the medals. Needing to beat Russia by two goals, USA led 2–1 with a minute remaining. They pulled their goalie, leading to Zach Parise's gold medal-winning goal with thirty seconds remaining.
The 2009 Men's Ice Hockey World Championships was the 73rd such event hosted by the International Ice Hockey Federation. Teams representing 46 countries participated in four levels of competition. The competition also served as qualifications for division placements in the 2010 competition. In the Division I Championship held in April, Kazakhstan and Italy were promoted to the Championship division, while Australia and Romania were demoted to Division II. In the Division II competition, Serbia and South Korea were promoted, North Korea and South Africa were relegated to Division III. In the Division III competition, New Zealand and Turkey were promoted to Division II for 2009.
The 2003 IIHF World U18 Championship Division II was a pair of international under-18 ice hockey tournaments run by the International Ice Hockey Federation. The Division II tournaments made up the third level of competition at the 2003 IIHF World U18 Championships. The Group A tournament took place between 17 and 23 March 2003 in Tallinn, Estonia and the Group B tournament took place between 5 and 11 March 2003 in Belgrade, Serbia and Montenegro. South Korea and Romania won the Group A and Group B tournaments respectively and gained promotion to Division I for the 2004 IIHF World U18 Championships. While Bulgaria finished last in Group A and South Africa last in Group B and were both relegated to Division III for 2004.
The 2005 IIHF World U18 Championship Division II was a pair of international under-18 ice hockey tournaments run by the International Ice Hockey Federation. The Division II tournaments made up the third level of competition at the 2005 IIHF World U18 Championships. The Group A tournament took place between 14 and 20 March 2005 in Kohtla-Järve, Estonia and the Group B tournament took place between 21 and 27 March 2004 in Bucharest, Romania. South Korea and Hungary won the Group A and Group B tournaments respectively and gained promotion to Division I for the 2006 IIHF World U18 Championships. While South Africa finished last in Group A and Romania last in Group B and were both relegated to Division III for 2006.
The 2007 IIHF World U18 Championship Division II were a pair of international under-18 ice hockey tournaments run by the International Ice Hockey Federation. The Division II tournaments made up the third level of competition at the 2007 IIHF World U18 Championships. The Group A tournament took place between 15 and 21 April 2007 in Miskolc, Hungary and the Group B tournament took place between 12 and 18 March 2007 in Miercurea Ciuc, Romania. The Netherlands and Lithuania won the Group A and Group B tournaments respectively and gained promotion to Division I for the 2008 IIHF World U18 Championships. While Mexico finished last in Group A and Serbia last in Group B and were both relegated to Division III for 2008.
The 2019 Men's Ice Hockey World Championships was the 83rd such event hosted by the International Ice Hockey Federation (IIHF). Teams participated at several levels of competition. The competition also served as qualifications for division placements in the 2020 competition. Two national teams, Kyrgyzstan and Thailand, made their debut in the World Championships.
The 2020 Men's Ice Hockey World Championships would have been the 84th such event hosted by the International Ice Hockey Federation. Teams would have participated in several levels of competition, including the inaugural competition in the newly created Division IV. The competition would also have served as qualifications for division placements in the 2021 competition.
The 2020 IIHF World U18 Championship would have been the 22nd such event hosted by the International Ice Hockey Federation. Teams would have participated at several levels of competition. The competition also would have served as qualifications for the 2021 competition. The division II and III tournaments were cancelled by IIHF on 2 March 2020. The top division and division I tournaments were cancelled by the IIHF on 13 March 2020 due to the COVID-19 pandemic
The 2021 Women's World Ice Hockey Championships were the 23rd such event organized by the International Ice Hockey Federation. Originally scheduled to comprise six tournaments across four divisions, the event was significantly curtailed due to the COVID-19 pandemic. On 18 November 2020, the IIHF announced the cancellation of the Divisions I, II and III tournaments at the recommendation of the IIHF COVID-19 Expert Group. Only the Top Division tournament was maintained, bringing the number of participating nations from 42 to 10. With only one tournament held, the standard system of promotion and relegation between divisions and groups was not implemented and each team remained in the tournament pool designated for the 2021 event at the 2022 championships.
Croatia 
South Korea 
