| 1981 South American Championships | |
|---|---|
| Date | 16–22 November |
| Edition | 15th |
| Category | Grand Prix circuit (Super Series) |
| Draw | 32S / 16D |
| Prize money | $175,000 |
| Surface | Clay / outdoor |
| Location | Buenos Aires, Argentina |
| Champions | |
| Singles | |
 Ivan Lendl[1] | |
| Doubles | |
 Marcos Hocevar / João Soares[2] | |
The 1981 South American Championships was a men's tennis tournament held in Buenos Aires, Argentina. It was the 15th edition of the tournament and was played on outdoor clay courts. The tournament was part of the 1981 Volvo Grand Prix and started was held from 16 November until 22 November 1981. First-seeded Ivan Lendl won the singles title.
