The 2003 Challenge Bell was a tennis tournament played on indoor carpet courts at the Club Avantage Multi-Sports in Quebec City in Canada that was part of Tier III of the 2003 WTA Tour. It was the 11th edition of the Challenge Bell, and was held from October 27 through November 2, 2003. Maria Sharapova won the singles title.
| 2003 Challenge Bell | |
|---|---|
| Date | October 27 – November 2 |
| Edition | 11th |
| Category | WTA Tier III |
| Draw | 30S (32Q) / 16D (4Q) |
| Prize money | US$170,000 |
| Surface | Carpet – indoors |
| Location | Quebec City, Canada |
| Venue | Club Avantage Multi-Sports |
| Champions | |
| Singles | |
 Maria Sharapova | |
| Doubles | |
 Li Ting / Sun Tiantian | |
Champions edit
Singles edit
Maria Sharapova def. 
Milagros Sequera, 6–2, retired
- It was Sharapova's 2nd title of the year and the 2nd of her career.
Doubles edit
Li Ting / Sun Tiantian def. 
Els Callens / 
Meilen Tu, 6–3, 6–3
- It was Li's 2nd title of the year and the 2nd of her career. It was Sun's 2nd title of the year and the 2nd of her career.