1977 Rothmans Canadian Open

The 1977 Rothmans Canadian Open was a tennis tournament played on outdoor clay courts at the National Tennis Centre in Toronto in Canada that was part of the 1977 Colgate-Palmolive Grand Prix and of the 1977 WTA Tour. The tournament was held from August 15 through August 22, 1977.

Men's singles
🇺🇸 Jeff Borowiak defeated Jaime Fillol 6–0, 6–1
 * It was Borowiak's 3rd title of the year and the 8th of his career.

Women's singles
Regina Maršíková defeated Marise Kruger 6–4, 4–6, 6–2
 * It was Maršíková's 1st title of the year and the 1st of her career.

Men's doubles
Bob Hewitt / 🇲🇽 Raúl Ramírez defeated 🇺🇸 Fred McNair / 🇺🇸 Sherwood Stewart 6–4, 3–6, 6–2
 * It was Hewitt's 10th title of the year and the 40th of his career. It was Ramírez's 6th title of the year and the 53rd of his career.

Women's doubles
Delina Ann Boshoff / Ilana Kloss defeated 🇺🇸 Rosemary Casals / 🇦🇺 Evonne Goolagong Cawley 6–2, 6–3
 * It was Boshoff's 1st title of the year and the 1st of her career. It was Kloss' 1st title of the year and the 1st of her career.