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.

Standings

{| class="wikitable" |- !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 |- bgcolor=#ccffcc align=center |align=left| |4||4||0||0||309||6||+ 303||8 |- align=center |align=left| |4||3||0||1||60||80||- 20||6 |- align=center |align=left| |4||2||0||2||62||79||- 17||4 |- align=center |align=left| |4||1||0||3||31||137||- 106||2 |- align=center |align=left| |4||0||0||4||18||178||- 160||0

Results

First round

Second round

Third round

Fourth round

Fifth round

References

IRB – South American Championship 1973