2003 Canada Masters – Singles
| Singles | |
|---|---|
| 2003 Canada Masters and the Rogers AT&T Cup | |
| Champion | Andy Roddick |
| Runner-up | David Nalbandian |
| Score | 6–1, 6–3 |
| Draw | 64 (4WC/8Q/1LL) |
| Seeds | 16 |
Andy Roddick defeated David Nalbandian in the final, 6–1, 6–3 to win the men's singles tennis title at the 2003 Canada Masters.
Guillermo Cañas was the reigning champion, but did not compete that year.