The Rugby Championship, formerly known as the Tri Nations Series (1996–2011), is an international rugby union competition contested annually by Argentina, Australia, New Zealand, and South Africa. These are traditionally the four highest ranked national teams in the Southern Hemisphere; the Six Nations is a similar tournament in the Northern Hemisphere.
The SVNS, known as the HSBC SVNS for sponsorship reasons, is an annual series of international rugby sevens tournaments run by World Rugby featuring national sevens teams. Organised for the first time in the 1999–2000 season as the IRB World Sevens Series, the competition was formed to promote an elite-level of international rugby sevens and develop the game into a viable commercial product. The competition has been sponsored by banking group HSBC since 2014.
World Rugby is the governing body for the sport of rugby union. World Rugby organises the Rugby World Cup every four years, the sport's most recognised and most profitable competition. It also organises a number of other international competitions, such as the World Rugby Sevens Series, the Rugby World Cup Sevens, the World Under 20 Championship, and the Pacific Nations Cup.
The Pacific Nations Cup is an international rugby union competition held between three Pacific states: Fiji, Samoa and Tonga. The 2019 edition of the tournament also included the national teams of Canada, Japan and United States. First held in 2006, the tournament is intended to strengthen the Tier 2 rugby teams by providing competitive test matches in a tournament format.
Rugby union in the United States is played at youth, high school, college, amateur, professional, and international levels and governed by USA Rugby. There were over 125,000 players registered with USA Rugby as of 2016. Over 2,500 rugby union clubs exist around the country, including those who are part of college rugby. Professional club competition has existed as Major League Rugby (MLR) since 2017.
The International Rugby Board (IRB) awarded the 2007 Under 19 Rugby World Championship to the Irish Rugby Football Union (IRFU) and the Ulster branch hosted it. The Tournament, which took place in Belfast, Northern Ireland from 4–21 April, was split into two divisions of twelve teams. Division A games took place in Belfast at Belfast Harlequins' Deramore Park, Ulster Rugby's Ravenhill Stadium, and Cooke RFC/Instonians' Shaw's Bridge complex. Division B games were held in Queen's University of Belfast's The Dub complex and Malone RFC's Gibson Park in Belfast, and Bangor RFC's Upritchard Park in Bangor.
The Wales national Under 20 rugby team is for Welsh rugby union players aged 20 or under on 1 January of the year during which they are selected.
The 2008 IRB Junior World Championship was the first annual international rugby union competition for Under 20 national teams. All players who were twenty years of age or under on 1 January 2008 were eligible for selection.
The World Rugby Under 20 Trophy is an international rugby union competition. The event is organised by the sport's governing body, World Rugby, and is contested by 8 men's junior national teams with an under-20 age requirement. This event replaced the World Rugby's former age-grade world championships, the Under-19 and Under-21 World Championships.
The England Under 20 rugby team are the newest representative rugby union team from England. They replace the two former age grade teams Under 19s and Under 21s. They compete in the annual Six Nations Under 20s Championship and World Rugby Under 20 Championship.
The Canada under 20 rugby team is the junior national rugby union team from Canada. It replaced the two former age grade teams, the under 19s and under 21s, in 2008. The team competed at the IRB Junior World Championship in 2008 and 2009 but were relegated to the IRB Junior World Rugby Trophy for 2010. The team has yet to make their way back to the top competition.
The Rugby Europe Under-18 Championship is an annual rugby union championship for Under-18 national teams, held since 2004. The championship is organised by rugby's European governing body, Rugby Europe.
The 2012 IRB Junior World Championship was the fifth IRB Junior World Championship, an annual international rugby union competition for Under-20 national teams. This competition replaced the now defunct Under 19 and Under 21 world championships. The event was held in South Africa between 4 and 22 June 2012 and organised by world rugby's governing body, the International Rugby Board (IRB). A total of 12 nations played in the tournament. New Zealand came into the tournament as defending champions. South Africa were crowned 2012 champions after defeating New Zealand 22–16 in the final on 22 June at Newlands Stadium.
The United States national under-20 rugby union team, for sponsorship reasons known as the AIG Men's Junior All-Americans, is the United States' junior rugby team at the national level. The U-20 team has competed at the IRB Junior World Championship and at several IRB Junior World Rugby Trophy tournaments.
The 2013 IRB Junior World Championship was the sixth, IRB Junior World Championship, an annual international rugby union competition for Under 20 national teams. The event was organised in France by rugby's governing body, the IRB. A total of twelve nations played in the tournament. South Africa went into the tournament as defending champions, after winning the tournament for the first time in 2012. England were crowned the 2013 champions for the first time after defeating Wales 23–15 in the final on the 23 June at Stade de la Rabine in Vannes.
The Scotland national under-20 rugby union team participates in the World Rugby Under 20 Trophy. Their highest placement is 5th which they achieved in the 2017 World Rugby Under 20 Championship.
The Italy national under-20 rugby union team has competed in both the IRB Junior World Championship and IRB Junior World Rugby Trophy. They were one of four teams relegated in 2009 to the Junior World Trophy after finishing at the bottom of the tournament. They were again promoted to the 2011 IRB Junior World Championship after winning the 2010 IRB Junior World Rugby Trophy.
The World Rugby SVNS, known as the HSBC SVNS for sponsorship reasons, is a series of international rugby sevens tournaments for women's national teams run by World Rugby. The inaugural series was held in 2012–13 as the successor to the IRB Women's Sevens Challenge Cup held the previous season. The competition has been sponsored by banking group HSBC since 2015.
The 2014 IRB Junior World Championship was the seventh annual international rugby union competition for Under 20 national teams. The event was organised in Auckland, New Zealand by rugby's governing body, World Rugby, then known as the International Rugby Board. A total of 12 nations took part in the tournament. England went into the tournament as defending champions, after winning the tournament for the first time in 2013. England went on to win the Championship for a second time in two years. While hosts New Zealand, the most successful team in the tournament, were looking to win the title for the first time since 2011.
Rugby Europe is the administrative body for rugby union in Europe. It was formed in 1999 to promote, develop, organise, and administer the game of rugby in Europe under the authority of World Rugby. However, it is not responsible for the organisation of the Six Nations Championship or the competitions run by European Professional Club Rugby.
2024 World Rugby U20 Championship 
France (2023)
New Zealand (6 titles)
