1974 Rothmans Canadian Open
Date	August 12–18
Edition	85th
Surface	Clay / outdoor
Location	Toronto, Ontario, Canada
Venue	Toronto Cricket Skating and Curling Club
Champions
Men's singles
Guillermo Vilas[1]
Women's singles
Chris Evert
Men's doubles
Manuel Orantes / Guillermo Vilas[2]
Women's doubles
Gail Chanfreau / Julie Heldman
← 1973 · Canadian Open · 1975 →

The 1974 Rothmans Canadian Open was a tennis tournament played on outdoor clay courts at the Toronto Cricket Skating and Curling Club^[3] in Toronto in Canada that was part of the 1974 Commercial Union Assurance Grand Prix and of the 1974 WTA Tour. The tournament was held from August 12 through August 18, 1974.

Finals

Men's singles

Guillermo Vilas defeated Manuel Orantes 6–4, 6–2, 6–3

• It was Vilas' 5th title of the year and the 7th of his career.

Women's singles

Chris Evert defeated Julie Heldman 6–0, 6–3

• It was Evert's 16th title of the year and the 36th of her career.

Men's doubles

Manuel Orantes / Guillermo Vilas defeated Jürgen Fassbender / Hans-Jürgen Pohmann 6–1, 2–6, 6–2

• It was Orantes' 3rd title of the year and the 23rd of his career. It was Vilas' 6th title of the year and the 8th of his career.

Women's doubles

Gail Chanfreau / Julie Heldman defeated Chris Evert / Jeanne Evert 6–3, 6–4

• It was Chanfreau's 1st title of the year and the 1st of her career. It was Heldman's 1st title of the year and the 1st of her career.