| 1998 du Maurier Open | |
|---|---|
| Date | August 3–9 (men) August 17–23 (women) |
| Edition | 109th |
| Surface | Hard / outdoor |
| Champions | |
| Men's singles | |
 Patrick Rafter[1] | |
| Women's singles | |
 Monica Seles | |
| Men's doubles | |
 Martin Damm / Jim Grabb[2] | |
| 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.
- ^ "1998 Toronto – Men's Singles draw". Association of Tennis Professionals (ATP).
- ^ "1998 Toronto – Men's Doubles draw". Association of Tennis Professionals (ATP).