1991 Canadian Open
Date	July 22 – July 28 (men) August 5 – August 11 (women)
Edition	102nd
Surface	Hard / outdoor
Champions
Men's singles
Andrei Chesnokov[1]
Women's singles
Jennifer Capriati
Men's doubles
Patrick Galbraith / Todd Witsken[2]
Women's doubles
Larisa Savchenko-Neiland / Natalia Zvereva
← 1990 · Canadian Open · 1992 →

The 1991 Canadian Open was a tennis tournament played on outdoor hard courts. It was the 102nd edition of the Canada Masters, and was part of the ATP Super 9 of the 1991 ATP Tour, and of the Tier I Series of the 1991 WTA Tour. The men's event took place at the Uniprix Stadium in Montreal, Canada from July 22 through July 28, 1991, and the women's event at the National Tennis Centre in Toronto, Ontario, Canada from August 5 through August 11, 1991.

Finals

Men's singles

Andrei Chesnokov defeated Petr Korda, 3–6, 6–4, 6–3

• It was Andrei Chesnokov's 1st title of the year and his 7th overall. It was his 1st Masters title of the year and his 2nd overall.

Women's singles

Jennifer Capriati defeated Katerina Maleeva, 6–2, 6–3

• It was Jennifer Capriati's 2nd title of the year and her 3rd overall. It was her 1st Tier I title.

Men's doubles

Patrick Galbraith / Todd Witsken defeated Grant Connell / Glenn Michibata, 6–4, 3–6, 6–1

Women's doubles

Larisa Savchenko-Neiland / Natalia Zvereva defeated Claudia Kohde-Kilsch / Helena Suková 1–6, 7–5, 6–2