| Event: | Rugby union |
| Games: | 1971 South Pacific Games |
| Venue: | Papeete, Tahiti |
| Dates: | August - September |
| Nations: | 5 |
| Prev: | 1969 |
| Next: | 1979 |
Rugby union at the 1971 South Pacific Games was held at Papeete in Tahiti with five men's teams competing. Western Samoa won the gold medal and were undefeated in the tournament.
| Men's rugby 15s | align=center | align=center | align=center |
Competition tables after the group stage:
| Group 1 | |||||||||||||||||
| width=200 | Team | width=20 | Pld | width=20 | W | width=20 | D | width=20 | L | width=30 | PF | width=30 | PA | width=30 | PD | width=20 | Pts |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| align=left | 1 | 1 | 0 | 0 | 3 | 0 | +3 | 2 | |||||||||
| align=left | 1 | 0 | 0 | 1 | 0 | 3 | −3 | 0 | |||||||||
| Group 2 | |||||||||||||||||
| width=200 | Team | width=20 | Pld | width=20 | W | width=20 | D | width=20 | L | width=30 | PF | width=30 | PA | width=30 | PD | width=20 | Pts |
| align=left | 2 | 2 | 0 | 0 | 52 | 24 | +28 | 4 | |||||||||
| align=left | 2 | 1 | 0 | 1 | 45 | 32 | +13 | 2 | |||||||||
| align=left | 2 | 0 | 0 | 2 | 14 | 55 | -41 | 0 |
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