| 1971 Rothmans Canadian Open | |
|---|---|
| Date | August 9–16 |
| Edition | 82nd |
| Category | WCT |
| Surface | Clay / outdoor |
| Location | Toronto, Ontario, Canada |
| Venue | Toronto Lawn Tennis Club |
| Champions | |
| Men's singles | |
 John Newcombe | |
| Women's singles | |
 Françoise Dürr | |
| Men's doubles | |
 Tom Okker /  Marty Riessen | |
| Women's doubles | |
| Rosemary Casals / Françoise Dürr | |
The 1971 Rothmans Canadian Open was a tennis tournament played on outdoor clay courts at the Toronto Lawn Tennis Club in Toronto in Canada that was part of the 1971 World Championship Tennis circuit. The tournament was held from August 9 through August 16, 1971. John Newcombe and Françoise Dürr won the singles titles.