1998 du Maurier Open

1998 du Maurier Open
DateAugust 3–9 (men)
August 17–23 (women)
Edition109th
SurfaceHard / outdoor
Champions
Men's singles
Patrick Rafter
Women's singles
Monica Seles
Men's doubles
Martin Damm / Jim Grabb
Women's doubles
Martina Hingis / Jana Novotná

The 1998 du Maurier Open was a tennis tournament played on outdoor hard courts. It was the 109th edition of the Canada Masters and was part of the Super 9 of the 1998 ATP Tour and of Tier I of the 1998 WTA Tour. The men's event took place at the National Tennis Centre in Toronto in Canada from August 3 through August 10, 1998, while the women's event took place at the du Maurier Stadium in Montreal in Canada from August 17 through August 23, 1998.