| Spanish; Castilian: 16° Campeonato Sudamericano de Rugby | |
| Host: | Uruguay |
| Champion: | Argentina |
| Runnerup: | Uruguay |
| Matches: | 10 |
| Countries: | |
| Preceded By: | 1987 |
| Succeeded By: | 1991 |
See main article: South American Rugby Championship.
The 1989 South American Rugby Championship was the 16th 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 | 248 | 30 | + 218 | 8 | ||||||||||
| 4 | 3 | 0 | 1 | 109 | 71 | + 38 | 6 | ||||||||||
| 4 | 2 | 0 | 2 | 87 | 84 | + 3 | 4 | ||||||||||
| 4 | 1 | 0 | 3 | 73 | 207 | - 134 | 2 | ||||||||||
| 5 | 0 | 0 | 4 | 34 | 159 | - 125 | 0 |
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