1970 Rothmans Canadian Open

The 1970 Rothmans Canadian Open was a tennis tournament played on outdoor clay courts at the Toronto Cricket Skating and Curling Club in Toronto in Canada that was part of the 1970 Pepsi-Cola Grand Prix. The men's tournament was held from August 12 through August 18, 1970, while the women's tournament was played from August 19 through August 25, 1970.

Men's singles
🇦🇺 Rod Laver defeated 🇬🇧 Roger Taylor 6–0, 4–6, 6–3
 * It was Laver's 6th professional title of the year and the 17th of his career.

Women's singles
🇦🇺 Margaret Court defeated 🇺🇸 Rosemary Casals 6–8, 6–4, 6–4
 * It was Court's 27th professional title of the year and the 77th of her career.

Men's doubles
🇦🇺 William Bowrey / 🇺🇸 Marty Riessen defeated Cliff Drysdale / 🇦🇺 Fred Stolle 6–3, 6–2
 * It was Bowrey's 2nd title of the year and the 4th of his career. It was Riessen's 3rd title of the year and the 8th of his professional career.

Women's doubles
🇺🇸 Rosemary Casals / 🇦🇺 Margaret Court defeated 🇦🇺 Helen Gourlay / Pat Walkden 6–0, 6–1
 * It was Casals' 6th title of the year and the 13th of her career. It was Court's 28th professional title of the year and the 78th of her career.