| Tournament details | |
|---|---|
| Host |  Brazil |
| Date | 14–21 October 1973 |
| Countries |  Argentina Brazil  Chile  Paraguay  Uruguay |
| Final positions | |
| Champions | Argentina |
| Runner-up | Uruguay |
| Tournament statistics | |
| Matches played | 10 |
← 1971 1975 → | |
The 1973 South American Rugby Championship was the eighth edition of the competition of the leading national Rugby Union teams in South America.
The tournament was played in São Paulo and won by Argentina.
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 Argentina national rugby union team represents Argentina in men's international competitions, The Argentine Rugby Union. Officially nicknamed Los Pumas, they play in sky blue and white jerseys. They are ranked 7th in the world by World Rugby, making them by some distance the highest-ranked nation in the Americas.
The Uruguay national rugby union team, nicknamed Los Teros, represents the Uruguayan Rugby Union in men's international rugby union. One of the older test sides in the world, Uruguay has qualified five times for the Rugby World Cup, in 1999, 2003, 2015, 2019 and most recently 2023. As of 10 July 2023 they are ranked 17th in the world, and are ranked 2nd in the Americas region, behind rivals Argentina.
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 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 2010 South American Rugby Championship was the 32nd edition of the two tiered competition of the leading national Rugby Union teams in South America.
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 1971 South American Rugby Championship was the seventh edition of the competition of the leading national Rugby Union teams in South America.
The 1975 South American Rugby Championship was the ninth edition of the competition of the leading national Rugby Union teams in South America.
The 1977 South American Rugby Championship was the tenth edition of the competition of the leading national Rugby Union teams in South America.
The 1979 South American Rugby Championship was the eleventh edition of the competition of the leading national Rugby Union teams in South America.
The 1981 South American Rugby Championship was the twelfth edition of the competition of the leading national Rugby Union teams in South America.
The 1983 South American Rugby Championship was the 13th edition of the competition of the leading national Rugby Union teams in South America.
The 1985 South American Rugby Championship was the 14th edition of the competition of the leading national Rugby Union teams in South America.
The 1987 South American Rugby Championship was the 15th edition of the competition of the leading national Rugby Union teams in South America.
The 1989 South American Rugby Championship was the 16th 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 2004 South American Rugby Championship was the 26th 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 2006 South American Rugby Championship was the 28th edition of the competition of the leading national Rugby Union teams in South America.