| 7° Sudamericano de Rugby | |
| Countries: | |
| Host: | Uruguay |
| Champion: | Argentina |
| Runnerup: | Chile |
| Matches: | 3 |
| Preceded By: | 1969 |
| Succeeded By: | 1973 |
See main article: South American Rugby Championship. The 1971 South American Rugby Championship was the seventh edition of the competition of the leading national Rugby Union teams in South America.
The tournament was played in Montevideo and won by Argentina.
| width=165 | Team | width=40 | Played | width=40 | Won | width=40 | Drawn | width=40 | Lost | width=40 | For | width=40 | Against | width=40 | Difference | width=40 | Pts |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 4 | 4 | 0 | 0 | 192 | 15 | +177 | 8 | ||||||||||
| 4 | 3 | 0 | 1 | 99 | 29 | +70 | 6 | ||||||||||
| 4 | 2 | 0 | 2 | 105 | 80 | +25 | 4 | ||||||||||
| 4 | 1 | 0 | 3 | 32 | 144 | −112 | 2 | ||||||||||
| 4 | 0 | 0 | 4 | 9 | 169 | −160 | 0 |
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