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 Churchill Cup was an annual rugby union tournament, held in June, contested by representative men's teams from Canada, England, the United States, and other invited teams from a wide array of countries.
The Nations Cup is a rugby union competition that was first held in 2006 at Estádio Universitário in Lisbon with Argentina A, Italy A, Portugal and Russia taking part. The tournament is part of the International Rugby Board's US $50 million Strategic Investment programme, which also includes the Pacific Nations Cup, the Pacific Rugby Cup, and the Americas Rugby Championship.
The Chilean national rugby union team represents the Chilean Rugby Federation in men's international rugby union. Nicknamed Los Cóndores, they play in red and white jerseys. They are currently ranked 22nd in the World Rugby Rankings, making them the third highest-ranked nation in South America.
The Rosario Rugby Union is the organisational body that controls the game of rugby union in Rosario, in the province of Santa Fe, Argentina. The rest of Santa Fe province teams are organised under the Unión Santafesina de Rugby.
The South American Rugby Championship refers to the continental rugby union championships for South America, organized by Sudamérica Rugby. The current name of the championships is South American Six Nations, implemented in 2018. Throughout history, South American Championships have also existed for lower divisions of the rugby union championships, as well as youth and women tournaments, and editions for rugby sevens.
The Americas Rugby Championship, often informally called the Americas' Six Nations, was an annual international rugby tournament between six North and South American nations: Argentina, Brazil, Canada, Chile, the United States and Uruguay. Originally competed by various interlocking combinations of club, second-tier national and top national sides, the current international tournament has the top national sides competing. The current format provides these top national teams with additional test matches to be counted in the World Rugby Rankings.
The 2011 South American Rugby Championship "A" was the 33rd edition of the two tiered competition of the leading national rugby union teams in South America.
The 1951 South American Rugby Championship was the first edition of the two tiered competition of the leading national Rugby Union teams in South America.
The 1993 South American Rugby Championship was the 18th edition of the competition of the leading national Rugby Union teams in South America.
The 1995 South American Rugby Championship was the 19th edition of the competition of the leading national Rugby Union teams in South America.
The 1997 South American Rugby Championship was the 20th edition of the competition of the leading national Rugby Union teams in South America.
The 1998 South American Rugby Championship was the 21st edition of the competition of the leading national Rugby Union teams in South America.
The 2000 South American Rugby Championship was the 22nd edition of the competition of the leading national Rugby Union teams in South America.
The 2001 South American Rugby Championship was the 23rd edition of the competition of the leading national Rugby Union teams in South America.
The 2003 South American Rugby Championship was the 25th edition of the competition of the leading national Rugby Union teams in South America.
The 2005 South American Rugby Championship was the 27th edition of the competition of the leading national Rugby Union teams in South America.
The 1951 Campeonato Argentino de Rugby was won by the selection of Buenos Aires Province ("Provincia") that beat in the final the selection of Capital
The Mar del Plata Sevens is an international rugby sevens competition played in Mar del Plata, Argentina since 1995. The tournament was one of the events in the World Rugby Sevens Series in 2000 and 2002.
Super Rugby Americas (SRA) is a franchise rugby union tournament format in the Americas that began its first season in February 2023 after efforts by World Rugby. It is organized and led by Sudamérica Rugby, the highest rugby entity in South America.
Chile 
Argentina 
Peru 
Uruguay