| Spanish; Castilian: 11° Campeonato Sudamericano de Rugby | |
| Host: | Chile |
| Champion: | Argentina |
| Runnerup: | Uruguay |
| Matches: | 10 |
| Countries: | |
| Preceded By: | 1977 |
| Succeeded By: | 1981 |
See main article: South American Rugby Championship.
The 1979 South American Rugby Championship was the eleventh edition of the competition of the leading national Rugby Union teams in South America.
The tournament was played in Chile 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 | 238 | 47 | + 191 | 8 | ||||||||||
| 4 | 2 | 1 | 1 | 126 | 37 | + 89 | 5 | ||||||||||
| 4 | 2 | 1 | 1 | 104 | 62 | + 42 | 5 | ||||||||||
| 4 | 1 | 0 | 3 | 25 | 216 | - 191 | 2 | ||||||||||
| 4 | 0 | 0 | 4 | 41 | 172 | - 131 | 0 |
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